212078804 has 24 divisors (see below), whose sum is σ = 431350080. Its totient is φ = 89349696.

The previous prime is 212078803. The next prime is 212078807. The reversal of 212078804 is 408870212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212078803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62537 + ... + 65840.

It is an arithmetic number, because the mean of its divisors is an integer number (17972920).

Almost surely, 2^212078804 is an apocalyptic number.

It is an amenable number.

212078804 is an abundant number, since it is smaller than the sum of its proper divisors (219271276).

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

212078804 is a wasteful number, since it uses less digits than its factorization.

212078804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128447 (or 128445 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 212078804 is about 14562.9256675985. The cubic root of 212078804 is about 596.3470682460.

The spelling of 212078804 in words is "two hundred twelve million, seventy-eight thousand, eight hundred four".