256233456 has 50 divisors (see below), whose sum is σ = 741617712. Its totient is φ = 85410720.

The previous prime is 256233451. The next prime is 256233463. The reversal of 256233456 is 654332652.

256233456 is a `hidden beast` number, since 25 + 623 + 3 + 4 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 256233456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256233451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 97560 + ... + 100151.

Almost surely, 2^256233456 is an apocalyptic number.

It is an amenable number.

256233456 is an abundant number, since it is smaller than the sum of its proper divisors (485384256).

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

256233456 is a wasteful number, since it uses less digits than its factorization.

256233456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197731 (or 197716 counting only the distinct ones).

The product of its digits is 129600, while the sum is 36.

The square root of 256233456 is about 16007.2938374980. The cubic root of 256233456 is about 635.1533768841.

The spelling of 256233456 in words is "two hundred fifty-six million, two hundred thirty-three thousand, four hundred fifty-six".