272428864 has 14 divisors (see below), whose sum is σ = 540601154. Its totient is φ = 136214400.

The previous prime is 272428841. The next prime is 272428889. The reversal of 272428864 is 468824272.

It can be written as a sum of positive squares in only one way, i.e., 254721600 + 17707264 = 15960^2 + 4208^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 272428864.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 2128287 + ... + 2128414.

Almost surely, 2^272428864 is an apocalyptic number.

It is an amenable number.

272428864 is a deficient number, since it is larger than the sum of its proper divisors (268172290).

272428864 is an equidigital number, since it uses as much as digits as its factorization.

272428864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4256713 (or 4256703 counting only the distinct ones).

The product of its digits is 344064, while the sum is 43.

The square root of 272428864 is about 16505.4192312707. The cubic root of 272428864 is about 648.2627091070.

The spelling of 272428864 in words is "two hundred seventy-two million, four hundred twenty-eight thousand, eight hundred sixty-four".