212502816 has 36 divisors (see below), whose sum is σ = 604305702. Its totient is φ = 70834176.

The previous prime is 212502793. The next prime is 212502863. The reversal of 212502816 is 618205212.

It is a happy number.

212502816 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 185504400 + 26998416 = 13620^2 + 5196^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 212502816.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 368641 + ... + 369216.

Almost surely, 2^212502816 is an apocalyptic number.

It is an amenable number.

212502816 is an abundant number, since it is smaller than the sum of its proper divisors (391802886).

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

212502816 is a wasteful number, since it uses less digits than its factorization.

212502816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737873 (or 737862 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 212502816 is about 14577.4763247964. The cubic root of 212502816 is about 596.7442319118.

The spelling of 212502816 in words is "two hundred twelve million, five hundred two thousand, eight hundred sixteen".