213390404 has 24 divisors (see below), whose sum is σ = 383794656. Its totient is φ = 103752000.

The previous prime is 213390379. The next prime is 213390413. The reversal of 213390404 is 404093312.

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, 52319 + ... + 56249.

It is an arithmetic number, because the mean of its divisors is an integer number (15991444).

Almost surely, 2^213390404 is an apocalyptic number.

It is an amenable number.

213390404 is a deficient number, since it is larger than the sum of its proper divisors (170404252).

213390404 is a wasteful number, since it uses less digits than its factorization.

213390404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4307 (or 4305 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 213390404 is about 14607.8884168794. Note that the first 3 decimals coincide. The cubic root of 213390404 is about 597.5739107812.

The spelling of 213390404 in words is "two hundred thirteen million, three hundred ninety thousand, four hundred four".