| Base | Representation |
|---|---|
| bin | 10100010010101… |
| … | …110100101100000 |
| 3 | 212201121211201100 |
| 4 | 110102232211200 |
| 5 | 1144124004403 |
| 6 | 53441034400 |
| 7 | 11302544316 |
| oct | 2422564540 |
| 9 | 781554640 |
| 10 | 340453728 |
| 11 | 1651a4a1a |
| 12 | 96025a00 |
| 13 | 556c3014 |
| 14 | 333040b6 |
| 15 | 1ed502a3 |
| hex | 144ae960 |
340453728 has 144 divisors (see below), whose sum is σ = 1022112000. Its totient is φ = 107281152.
The previous prime is 340453721. The next prime is 340453769. The reversal of 340453728 is 827354043.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (144).
It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.
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 = 340453692 and 340453701.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (340453721) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 682023 + ... + 682521.
It is an arithmetic number, because the mean of its divisors is an integer number (7098000).
Almost surely, 2340453728 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 340453728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (511056000).
340453728 is an abundant number, since it is smaller than the sum of its proper divisors (681658272).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
340453728 is a wasteful number, since it uses less digits than its factorization.
340453728 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 641 (or 630 counting only the distinct ones).
The product of its (nonzero) digits is 80640, while the sum is 36.
The square root of 340453728 is about 18451.3882404550. The cubic root of 340453728 is about 698.2635381678.
It can be divided in two parts, 34045 and 3728, that added together give a palindrome (37773).
The spelling of 340453728 in words is "three hundred forty million, four hundred fifty-three thousand, seven hundred twenty-eight".
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