256434232 has 16 divisors (see below), whose sum is σ = 496324800. Its totient is φ = 124080960.

The previous prime is 256434229. The next prime is 256434257. The reversal of 256434232 is 232434652.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 256434194 and 256434203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 516757 + ... + 517252.

It is an arithmetic number, because the mean of its divisors is an integer number (31020300).

Almost surely, 2^256434232 is an apocalyptic number.

It is an amenable number.

256434232 is a deficient number, since it is larger than the sum of its proper divisors (239890568).

256434232 is a wasteful number, since it uses less digits than its factorization.

256434232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034046 (or 1034042 counting only the distinct ones).

The product of its digits is 34560, while the sum is 31.

The square root of 256434232 is about 16013.5640005590. The cubic root of 256434232 is about 635.3192285819.

Adding to 256434232 its reverse (232434652), we get a palindrome (488868884).

The spelling of 256434232 in words is "two hundred fifty-six million, four hundred thirty-four thousand, two hundred thirty-two".