212804916 has 24 divisors (see below), whose sum is σ = 499070880. Its totient is φ = 70574112.

The previous prime is 212804887. The next prime is 212804923. The reversal of 212804916 is 619408212.

212804916 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 42646 + ... + 47373.

It is an arithmetic number, because the mean of its divisors is an integer number (20794620).

Almost surely, 2^212804916 is an apocalyptic number.

It is an amenable number.

212804916 is an abundant number, since it is smaller than the sum of its proper divisors (286265964).

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

212804916 is a wasteful number, since it uses less digits than its factorization.

212804916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90223 (or 90221 counting only the distinct ones).

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

The square root of 212804916 is about 14587.8345205860. The cubic root of 212804916 is about 597.0268808268.

The spelling of 212804916 in words is "two hundred twelve million, eight hundred four thousand, nine hundred sixteen".