272400656 has 80 divisors (see below), whose sum is σ = 614210688. Its totient is φ = 115660800.

The previous prime is 272400637. The next prime is 272400671. The reversal of 272400656 is 656004272.

272400656 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 541301 + ... + 541803.

Almost surely, 2^272400656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 272400656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307105344).

272400656 is an abundant number, since it is smaller than the sum of its proper divisors (341810032).

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

272400656 is a wasteful number, since it uses less digits than its factorization.

272400656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720 (or 714 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 272400656 is about 16504.5647019241. The cubic root of 272400656 is about 648.2403340603.

The spelling of 272400656 in words is "two hundred seventy-two million, four hundred thousand, six hundred fifty-six".