| Base | Representation |
|---|---|
| bin | 101011000010101… |
| … | …0100010011001000 |
| 3 | 10201122120201012110 |
| 4 | 1112011110103020 |
| 5 | 10424211000230 |
| 6 | 355150542320 |
| 7 | 50534535015 |
| oct | 12605242310 |
| 9 | 3648521173 |
| 10 | 1444234440 |
| 11 | 681261790 |
| 12 | 3438079a0 |
| 13 | 1a02987bc |
| 14 | d9b4870c |
| 15 | 86bd14b0 |
| hex | 561544c8 |
1444234440 has 128 divisors (see below), whose sum is σ = 4751913600. Its totient is φ = 348241920.
The previous prime is 1444234411. The next prime is 1444234447. The reversal of 1444234440 is 444324441.
It is a super-2 number, since 2×14442344402 = 4171626235364227200, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a junction number, because it is equal to n+sod(n) for n = 1444234398 and 1444234407.
It is not an unprimeable number, because it can be changed into a prime (1444234447) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 251926 + ... + 257594.
It is an arithmetic number, because the mean of its divisors is an integer number (37124325).
Almost surely, 21444234440 is an apocalyptic number.
1444234440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1444234440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2375956800).
1444234440 is an abundant number, since it is smaller than the sum of its proper divisors (3307679160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1444234440 is a wasteful number, since it uses less digits than its factorization.
1444234440 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5887 (or 5883 counting only the distinct ones).
The product of its (nonzero) digits is 24576, while the sum is 30.
The square root of 1444234440 is about 38003.0846116470. The cubic root of 1444234440 is about 1130.3490294156.
Adding to 1444234440 its reverse (444324441), we get a palindrome (1888558881).
Subtracting from 1444234440 its reverse (444324441), we obtain a palindrome (999909999).
The spelling of 1444234440 in words is "one billion, four hundred forty-four million, two hundred thirty-four thousand, four hundred forty".
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