3256913538 has 24 divisors (see below), whose sum is σ = 7428049200. Its totient is φ = 1028498904.

The previous prime is 3256913497. The next prime is 3256913549. The reversal of 3256913538 is 8353196523.

It is a happy number.

3256913538 is a `hidden beast` number, since 3 + 25 + 6 + 91 + 3 + 538 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 3256913493 and 3256913502.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4761228 + ... + 4761911.

It is an arithmetic number, because the mean of its divisors is an integer number (309502050).

Almost surely, 2^3256913538 is an apocalyptic number.

3256913538 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3256913538 is an abundant number, since it is smaller than the sum of its proper divisors (4171135662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3256913538 is a wasteful number, since it uses less digits than its factorization.

3256913538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9523166 (or 9523163 counting only the distinct ones).

The product of its digits is 583200, while the sum is 45.

The square root of 3256913538 is about 57069.3747819266. The cubic root of 3256913538 is about 1482.2976148891.

The spelling of 3256913538 in words is "three billion, two hundred fifty-six million, nine hundred thirteen thousand, five hundred thirty-eight".