213373812 has 24 divisors (see below), whose sum is σ = 502804512. Its totient is φ = 70420000.

The previous prime is 213373807. The next prime is 213373883. The reversal of 213373812 is 218373312.

It is a super-2 number, since 2×213373812² = 91056767294822688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 213373812.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86814 + ... + 89237.

It is an arithmetic number, because the mean of its divisors is an integer number (20950188).

Almost surely, 2^213373812 is an apocalyptic number.

It is an amenable number.

213373812 is an abundant number, since it is smaller than the sum of its proper divisors (289430700).

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

213373812 is a wasteful number, since it uses less digits than its factorization.

213373812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176159 (or 176157 counting only the distinct ones).

The product of its digits is 6048, while the sum is 30.

The square root of 213373812 is about 14607.3204935060. The cubic root of 213373812 is about 597.5584224195.

It can be divided in two parts, 213373 and 812, that added together give a triangular number (214185 = T₆₅₄).

The spelling of 213373812 in words is "two hundred thirteen million, three hundred seventy-three thousand, eight hundred twelve".