213374444 has 24 divisors (see below), whose sum is σ = 381931200. Its totient is φ = 104272400.

The previous prime is 213374437. The next prime is 213374459. The reversal of 213374444 is 444473312.

It is a self number, because there is not a number n which added to its sum of digits gives 213374444.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39719 + ... + 44769.

It is an arithmetic number, because the mean of its divisors is an integer number (15913800).

Almost surely, 2^213374444 is an apocalyptic number.

It is an amenable number.

213374444 is a deficient number, since it is larger than the sum of its proper divisors (168556756).

213374444 is a wasteful number, since it uses less digits than its factorization.

213374444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5293 (or 5291 counting only the distinct ones).

The product of its digits is 32256, while the sum is 32.

The square root of 213374444 is about 14607.3421264787. The cubic root of 213374444 is about 597.5590123959.

The spelling of 213374444 in words is "two hundred thirteen million, three hundred seventy-four thousand, four hundred forty-four".