256454416 has 20 divisors (see below), whose sum is σ = 518484672. Its totient is φ = 122651936.

The previous prime is 256454411. The next prime is 256454417. The reversal of 256454416 is 614454652.

It is not an unprimeable number, because it can be changed into a prime (256454411) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 348076 + ... + 348811.

Almost surely, 2^256454416 is an apocalyptic number.

It is an amenable number.

256454416 is an abundant number, since it is smaller than the sum of its proper divisors (262030256).

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

256454416 is a wasteful number, since it uses less digits than its factorization.

256454416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696918 (or 696912 counting only the distinct ones).

The product of its digits is 115200, while the sum is 37.

The square root of 256454416 is about 16014.1942038930. The cubic root of 256454416 is about 635.3358968543.

The spelling of 256454416 in words is "two hundred fifty-six million, four hundred fifty-four thousand, four hundred sixteen".