| Base | Representation |
|---|---|
| bin | 101100011010110… |
| … | …0110000101100000 |
| 3 | 10211212112102200100 |
| 4 | 1120311212011200 |
| 5 | 11023023212030 |
| 6 | 403521222400 |
| 7 | 51635366436 |
| oct | 13065460540 |
| 9 | 3755472610 |
| 10 | 1490444640 |
| 11 | 6a5354133 |
| 12 | 357191a00 |
| 13 | 1a9a27c09 |
| 14 | 101d36d56 |
| 15 | 8acad360 |
| hex | 58d66160 |
1490444640 has 144 divisors (see below), whose sum is σ = 5125616496. Its totient is φ = 394368000.
The previous prime is 1490444633. The next prime is 1490444653. The reversal of 1490444640 is 464440941.
1490444640 is a `hidden beast` number, since 1 + 4 + 9 + 0 + 4 + 4 + 4 + 640 = 666.
It is a tau number, because it is divible by the number of its divisors (144).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 1490444595 and 1490444604.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 184690 + ... + 192590.
It is an arithmetic number, because the mean of its divisors is an integer number (35594559).
Almost surely, 21490444640 is an apocalyptic number.
1490444640 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 1490444640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2562808248).
1490444640 is an abundant number, since it is smaller than the sum of its proper divisors (3635171856).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1490444640 is a wasteful number, since it uses less digits than its factorization.
1490444640 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8053 (or 8042 counting only the distinct ones).
The product of its (nonzero) digits is 55296, while the sum is 36.
The square root of 1490444640 is about 38606.2772098010. The cubic root of 1490444640 is about 1142.2783613397.
The spelling of 1490444640 in words is "one billion, four hundred ninety million, four hundred forty-four thousand, six hundred forty".
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