256020272 has 20 divisors (see below), whose sum is σ = 525218616. Its totient is φ = 120480000.

The previous prime is 256020253. The next prime is 256020287. The reversal of 256020272 is 272020652.

It is an unprimeable number.

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, 470354 + ... + 470897.

Almost surely, 2^256020272 is an apocalyptic number.

It is an amenable number.

256020272 is an abundant number, since it is smaller than the sum of its proper divisors (269198344).

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

256020272 is a wasteful number, since it uses less digits than its factorization.

256020272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941276 (or 941270 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 256020272 is about 16000.6334874592. The cubic root of 256020272 is about 634.9771806543.

The spelling of 256020272 in words is "two hundred fifty-six million, twenty thousand, two hundred seventy-two".