220879044 has 27 divisors (see below), whose sum is σ = 558558637. Its totient is φ = 73596624.

The previous prime is 220879039. The next prime is 220879049. The reversal of 220879044 is 440978022.

The square root of 220879044 is 14862.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (220879039) and next prime (220879049).

It can be written as a sum of positive squares in only one way, i.e., 110880900 + 109998144 = 10530^2 + 10488^2 .

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220879049) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 87934 + ... + 90410.

Almost surely, 2^220879044 is an apocalyptic number.

220879044 is the 14862-nd square number.

It is an amenable number.

220879044 is an abundant number, since it is smaller than the sum of its proper divisors (337679593).

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

220879044 is an equidigital number, since it uses as much as digits as its factorization.

220879044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4964 (or 2482 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The cubic root of 220879044 is about 604.4840388457.

Multiplying 220879044 by its sum of digits (36), we get a square (7951645584 = 89172²).

220879044 divided by its sum of digits (36) gives a square (6135529 = 2477²).

The spelling of 220879044 in words is "two hundred twenty million, eight hundred seventy-nine thousand, forty-four".