212904168 has 32 divisors (see below), whose sum is σ = 532815360. Its totient is φ = 70894080.

The previous prime is 212904157. The next prime is 212904173. The reversal of 212904168 is 861409212.

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, 22008 + ... + 30168.

It is an arithmetic number, because the mean of its divisors is an integer number (16650480).

Almost surely, 2^212904168 is an apocalyptic number.

It is an amenable number.

212904168 is an abundant number, since it is smaller than the sum of its proper divisors (319911192).

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

212904168 is a wasteful number, since it uses less digits than its factorization.

212904168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9257 (or 9253 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 212904168 is about 14591.2359997363. The cubic root of 212904168 is about 597.1196839806.

The spelling of 212904168 in words is "two hundred twelve million, nine hundred four thousand, one hundred sixty-eight".