220939056 has 80 divisors (see below), whose sum is σ = 682977120. Its totient is φ = 67979520.

The previous prime is 220939027. The next prime is 220939079. The reversal of 220939056 is 650939022.

It is a super-2 number, since 2×220939056² = 97628132932342272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 220939056.

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, 14055 + ... + 25286.

It is an arithmetic number, because the mean of its divisors is an integer number (8537214).

Almost surely, 2^220939056 is an apocalyptic number.

220939056 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

220939056 is an abundant number, since it is smaller than the sum of its proper divisors (462038064).

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

220939056 is a wasteful number, since it uses less digits than its factorization.

220939056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39371 (or 39359 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 220939056 is about 14864.0188374477. The cubic root of 220939056 is about 604.5387792300.

The spelling of 220939056 in words is "two hundred twenty million, nine hundred thirty-nine thousand, fifty-six".