220171872 has 48 divisors (see below), whose sum is σ = 578778480. Its totient is φ = 73285632.

The previous prime is 220171843. The next prime is 220171877. The reversal of 220171872 is 278171022.

It is a happy number.

220171872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220171877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95728 + ... + 98000.

It is an arithmetic number, because the mean of its divisors is an integer number (12057885).

Almost surely, 2^220171872 is an apocalyptic number.

It is an amenable number.

220171872 is an abundant number, since it is smaller than the sum of its proper divisors (358606608).

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

220171872 is a wasteful number, since it uses less digits than its factorization.

220171872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3295 (or 3287 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 220171872 is about 14838.1896469886. The cubic root of 220171872 is about 603.8382386281.

The spelling of 220171872 in words is "two hundred twenty million, one hundred seventy-one thousand, eight hundred seventy-two".