220104872 has 16 divisors (see below), whose sum is σ = 444442740. Its totient is φ = 101586816.

The previous prime is 220104853. The next prime is 220104883. The reversal of 220104872 is 278401022.

It can be written as a sum of positive squares in 2 ways, for example, as 215326276 + 4778596 = 14674^2 + 2186^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1058093 + ... + 1058300.

Almost surely, 2^220104872 is an apocalyptic number.

It is an amenable number.

220104872 is an abundant number, since it is smaller than the sum of its proper divisors (224337868).

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

220104872 is a wasteful number, since it uses less digits than its factorization.

220104872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116412 (or 2116408 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 220104872 is about 14835.9317873870. The cubic root of 220104872 is about 603.7769815352.

Adding to 220104872 its reverse (278401022), we get a palindrome (498505894).

The spelling of 220104872 in words is "two hundred twenty million, one hundred four thousand, eight hundred seventy-two".