220857934 has 16 divisors (see below), whose sum is σ = 364008960. Its totient is φ = 99666360.

The previous prime is 220857911. The next prime is 220857977. The reversal of 220857934 is 439758022.

It is a congruent number.

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, 33054 + ... + 39169.

It is an arithmetic number, because the mean of its divisors is an integer number (22750560).

Almost surely, 2^220857934 is an apocalyptic number.

220857934 is a deficient number, since it is larger than the sum of its proper divisors (143151026).

220857934 is a wasteful number, since it uses less digits than its factorization.

220857934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72375.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 220857934 is about 14861.2897825189. The cubic root of 220857934 is about 604.4647808476.

The spelling of 220857934 in words is "two hundred twenty million, eight hundred fifty-seven thousand, nine hundred thirty-four".