216460272 has 40 divisors (see below), whose sum is σ = 639074176. Its totient is φ = 61845696.

The previous prime is 216460267. The next prime is 216460297. The reversal of 216460272 is 272064612.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321778 + ... + 322449.

Almost surely, 2^216460272 is an apocalyptic number.

It is an amenable number.

216460272 is an abundant number, since it is smaller than the sum of its proper divisors (422613904).

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

216460272 is a wasteful number, since it uses less digits than its factorization.

216460272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644245 (or 644239 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 216460272 is about 14712.5888952285. The cubic root of 216460272 is about 600.4258754231.

The spelling of 216460272 in words is "two hundred sixteen million, four hundred sixty thousand, two hundred seventy-two".