213938934 has 32 divisors (see below), whose sum is σ = 467337600. Its totient is φ = 64752000.

The previous prime is 213938927. The next prime is 213938941. The reversal of 213938934 is 439839312.

213938934 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (213938927) and next prime (213938941).

It is a Curzon number.

It is a congruent number.

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, 77917 + ... + 80615.

It is an arithmetic number, because the mean of its divisors is an integer number (14604300).

Almost surely, 2^213938934 is an apocalyptic number.

213938934 is an abundant number, since it is smaller than the sum of its proper divisors (253398666).

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

213938934 is a wasteful number, since it uses less digits than its factorization.

213938934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3916.

The product of its digits is 139968, while the sum is 42.

The square root of 213938934 is about 14626.6514964978. The cubic root of 213938934 is about 598.0855032231.

The spelling of 213938934 in words is "two hundred thirteen million, nine hundred thirty-eight thousand, nine hundred thirty-four".