272155856 has 40 divisors (see below), whose sum is σ = 638084160. Its totient is φ = 109776384.

The previous prime is 272155853. The next prime is 272155861. The reversal of 272155856 is 658551272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272155853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69566 + ... + 73373.

It is an arithmetic number, because the mean of its divisors is an integer number (15952104).

Almost surely, 2^272155856 is an apocalyptic number.

It is an amenable number.

272155856 is an abundant number, since it is smaller than the sum of its proper divisors (365928304).

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

272155856 is a wasteful number, since it uses less digits than its factorization.

272155856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142971 (or 142965 counting only the distinct ones).

The product of its digits is 168000, while the sum is 41.

The square root of 272155856 is about 16497.1469048439. The cubic root of 272155856 is about 648.0460897970.

The spelling of 272155856 in words is "two hundred seventy-two million, one hundred fifty-five thousand, eight hundred fifty-six".