220879872 has 110 divisors (see below), whose sum is σ = 659838168. Its totient is φ = 73598976.

The previous prime is 220879871. The next prime is 220879873. The reversal of 220879872 is 278978022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (220879871) and next prime (220879873).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220879871) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 81613 + ... + 84275.

Almost surely, 2^220879872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220879872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329919084).

220879872 is an abundant number, since it is smaller than the sum of its proper divisors (438958296).

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

220879872 is an equidigital number, since it uses as much as digits as its factorization.

220879872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2695 (or 2668 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 220879872 is about 14862.0278562516. The cubic root of 220879872 is about 604.4847941794.

The spelling of 220879872 in words is "two hundred twenty million, eight hundred seventy-nine thousand, eight hundred seventy-two".