220942620 has 48 divisors (see below), whose sum is σ = 687378720. Its totient is φ = 58917888.

The previous prime is 220942613. The next prime is 220942627. The reversal of 220942620 is 26249022.

It is an interprime number because it is at equal distance from previous prime (220942613) and next prime (220942627).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220942627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204037 + ... + 205116.

It is an arithmetic number, because the mean of its divisors is an integer number (14320390).

Almost surely, 2^220942620 is an apocalyptic number.

220942620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220942620 is an abundant number, since it is smaller than the sum of its proper divisors (466436100).

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

220942620 is a wasteful number, since it uses less digits than its factorization.

220942620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409171 (or 409163 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 220942620 is about 14864.1387237875. The cubic root of 220942620 is about 604.5420298468.

The spelling of 220942620 in words is "two hundred twenty million, nine hundred forty-two thousand, six hundred twenty".