216326756 has 12 divisors (see below), whose sum is σ = 378995568. Its totient is φ = 108042312.

The previous prime is 216326743. The next prime is 216326777. The reversal of 216326756 is 657623612.

It is a super-2 number, since 2×216326756² = 93594530722967072, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 26186 + ... + 33441.

It is an arithmetic number, because the mean of its divisors is an integer number (31582964).

Almost surely, 2^216326756 is an apocalyptic number.

It is an amenable number.

216326756 is a deficient number, since it is larger than the sum of its proper divisors (162668812).

216326756 is a wasteful number, since it uses less digits than its factorization.

216326756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60538 (or 60536 counting only the distinct ones).

The product of its digits is 90720, while the sum is 38.

The square root of 216326756 is about 14708.0507206088. The cubic root of 216326756 is about 600.3023994172.

The spelling of 216326756 in words is "two hundred sixteen million, three hundred twenty-six thousand, seven hundred fifty-six".