220889028 has 12 divisors (see below), whose sum is σ = 515407760. Its totient is φ = 73629672.

The previous prime is 220888963. The next prime is 220889051. The reversal of 220889028 is 820988022.

220889028 is digitally balanced in base 3, 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 (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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, 9203698 + ... + 9203721.

Almost surely, 2^220889028 is an apocalyptic number.

It is an amenable number.

220889028 is an abundant number, since it is smaller than the sum of its proper divisors (294518732).

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

220889028 is a wasteful number, since it uses less digits than its factorization.

220889028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18407426 (or 18407424 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 220889028 is about 14862.3358863942. The cubic root of 220889028 is about 604.4931465117.

The spelling of 220889028 in words is "two hundred twenty million, eight hundred eighty-nine thousand, twenty-eight".