213705338 has 32 divisors (see below), whose sum is σ = 400353408. Its totient is φ = 83116800.

The previous prime is 213705301. The next prime is 213705353. The reversal of 213705338 is 833507312.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143558 + ... + 145038.

It is an arithmetic number, because the mean of its divisors is an integer number (12511044).

Almost surely, 2^213705338 is an apocalyptic number.

213705338 is a deficient number, since it is larger than the sum of its proper divisors (186648070).

213705338 is a wasteful number, since it uses less digits than its factorization.

213705338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2438.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 213705338 is about 14618.6640292470. The cubic root of 213705338 is about 597.8677444161.

The spelling of 213705338 in words is "two hundred thirteen million, seven hundred five thousand, three hundred thirty-eight".