212304204 has 36 divisors (see below), whose sum is σ = 613323984. Its totient is φ = 60658272.

The previous prime is 212304199. The next prime is 212304229. The reversal of 212304204 is 402403212.

212304204 is a `hidden beast` number, since 212 + 30 + 420 + 4 = 666.

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

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 420987 + ... + 421490.

Almost surely, 2^212304204 is an apocalyptic number.

It is an amenable number.

212304204 is an abundant number, since it is smaller than the sum of its proper divisors (401019780).

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

212304204 is a wasteful number, since it uses less digits than its factorization.

212304204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842494 (or 842489 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 212304204 is about 14570.6624420443. The cubic root of 212304204 is about 596.5582618131.

Adding to 212304204 its reverse (402403212), we get a palindrome (614707416).

The spelling of 212304204 in words is "two hundred twelve million, three hundred four thousand, two hundred four".