216272312 has 32 divisors (see below), whose sum is σ = 425796480. Its totient is φ = 102785760.

The previous prime is 216272281. The next prime is 216272323. The reversal of 216272312 is 213272612.

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 in 7 ways as a sum of consecutive naturals, for example, 26387 + ... + 33597.

It is an arithmetic number, because the mean of its divisors is an integer number (13306140).

Almost surely, 2^216272312 is an apocalyptic number.

It is an amenable number.

216272312 is a deficient number, since it is larger than the sum of its proper divisors (209524168).

216272312 is a wasteful number, since it uses less digits than its factorization.

216272312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7403 (or 7399 counting only the distinct ones).

The product of its digits is 2016, while the sum is 26.

The square root of 216272312 is about 14706.1997810447. The cubic root of 216272312 is about 600.2520348566.

The spelling of 216272312 in words is "two hundred sixteen million, two hundred seventy-two thousand, three hundred twelve".