213565472 has 24 divisors (see below), whose sum is σ = 442587600. Its totient is φ = 101162304.

The previous prime is 213565463. The next prime is 213565489. The reversal of 213565472 is 274565312.

It is a super-2 number, since 2×213565472² = 91220421661165568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175022 + ... + 176237.

It is an arithmetic number, because the mean of its divisors is an integer number (18441150).

Almost surely, 2^213565472 is an apocalyptic number.

It is an amenable number.

213565472 is an abundant number, since it is smaller than the sum of its proper divisors (229022128).

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

213565472 is a wasteful number, since it uses less digits than its factorization.

213565472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351288 (or 351280 counting only the distinct ones).

The product of its digits is 50400, while the sum is 35.

The square root of 213565472 is about 14613.8794301855. The cubic root of 213565472 is about 597.7372850022.

The spelling of 213565472 in words is "two hundred thirteen million, five hundred sixty-five thousand, four hundred seventy-two".