256033938 has 16 divisors (see below), whose sum is σ = 512710560. Its totient is φ = 85237536.

The previous prime is 256033927. The next prime is 256033951. The reversal of 256033938 is 839330652.

It is a junction number, because it is equal to n+sod(n) for n = 256033896 and 256033905.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21520 + ... + 31227.

It is an arithmetic number, because the mean of its divisors is an integer number (32044410).

Almost surely, 2^256033938 is an apocalyptic number.

256033938 is an abundant number, since it is smaller than the sum of its proper divisors (256676622).

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

256033938 is a wasteful number, since it uses less digits than its factorization.

256033938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53561.

The product of its (nonzero) digits is 116640, while the sum is 39.

The square root of 256033938 is about 16001.0605273526. The cubic root of 256033938 is about 634.9884785146.

The spelling of 256033938 in words is "two hundred fifty-six million, thirty-three thousand, nine hundred thirty-eight".