220898404 has 12 divisors (see below), whose sum is σ = 386677228. Its totient is φ = 110419200.

The previous prime is 220898387. The next prime is 220898407. The reversal of 220898404 is 404898022.

It can be written as a sum of positive squares in 2 ways, for example, as 167754304 + 53144100 = 12952^2 + 7290^2 .

It is a super-2 number, since 2×220898404² = 97592209779494432, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (220898407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21664 + ... + 30184.

Almost surely, 2^220898404 is an apocalyptic number.

It is an amenable number.

220898404 is a deficient number, since it is larger than the sum of its proper divisors (165778824).

220898404 is a wasteful number, since it uses less digits than its factorization.

220898404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15006 (or 15004 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 220898404 is about 14862.6513112567. The cubic root of 220898404 is about 604.5016992944.

The spelling of 220898404 in words is "two hundred twenty million, eight hundred ninety-eight thousand, four hundred four".