256180272 has 20 divisors (see below), whose sum is σ = 661799160. Its totient is φ = 85393408.

The previous prime is 256180241. The next prime is 256180277. The reversal of 256180272 is 272081652.

It is not an unprimeable number, because it can be changed into a prime (256180277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2668497 + ... + 2668592.

It is an arithmetic number, because the mean of its divisors is an integer number (33089958).

Almost surely, 2^256180272 is an apocalyptic number.

It is an amenable number.

256180272 is an abundant number, since it is smaller than the sum of its proper divisors (405618888).

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

256180272 is a wasteful number, since it uses less digits than its factorization.

256180272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5337100 (or 5337094 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 256180272 is about 16005.6325085890. The cubic root of 256180272 is about 635.1094295465.

The spelling of 256180272 in words is "two hundred fifty-six million, one hundred eighty thousand, two hundred seventy-two".