212371304 has 8 divisors (see below), whose sum is σ = 398196210. Its totient is φ = 106185648.

The previous prime is 212371301. The next prime is 212371309. The reversal of 212371304 is 403173212.

It can be written as a sum of positive squares in only one way, i.e., 207072100 + 5299204 = 14390^2 + 2302^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 212371304.

It is not an unprimeable number, because it can be changed into a prime (212371301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13273199 + ... + 13273214.

Almost surely, 2^212371304 is an apocalyptic number.

It is an amenable number.

212371304 is a deficient number, since it is larger than the sum of its proper divisors (185824906).

212371304 is a wasteful number, since it uses less digits than its factorization.

212371304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26546419 (or 26546415 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 212371304 is about 14572.9648321815. The cubic root of 212371304 is about 596.6211037827.

The spelling of 212371304 in words is "two hundred twelve million, three hundred seventy-one thousand, three hundred four".