216436612 has 24 divisors (see below), whose sum is σ = 433226304. Its totient is φ = 92682912.

The previous prime is 216436609. The next prime is 216436621. The reversal of 216436612 is 216634612.

216436612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44358 + ... + 48994.

It is an arithmetic number, because the mean of its divisors is an integer number (18051096).

Almost surely, 2^216436612 is an apocalyptic number.

It is an amenable number.

216436612 is an abundant number, since it is smaller than the sum of its proper divisors (216789692).

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

216436612 is a wasteful number, since it uses less digits than its factorization.

216436612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6315 (or 6313 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 216436612 is about 14711.7847999486. The cubic root of 216436612 is about 600.4039982850.

The spelling of 216436612 in words is "two hundred sixteen million, four hundred thirty-six thousand, six hundred twelve".