8869431220 has 24 divisors (see below), whose sum is σ = 20058560424. Its totient is φ = 3274866816.

The previous prime is 8869431187. The next prime is 8869431229. The reversal of 8869431220 is 221349688.

It can be written as a sum of positive squares in 4 ways, for example, as 322058916 + 8547372304 = 17946^2 + 92452^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8869431229) 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, 17056339 + ... + 17056858.

It is an arithmetic number, because the mean of its divisors is an integer number (835773351).

Almost surely, 2^8869431220 is an apocalyptic number.

It is an amenable number.

8869431220 is an abundant number, since it is smaller than the sum of its proper divisors (11189129204).

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

8869431220 is a wasteful number, since it uses less digits than its factorization.

8869431220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34113219 (or 34113217 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 8869431220 is about 94177.6577538431. The cubic root of 8869431220 is about 2069.9757455520.

The spelling of 8869431220 in words is "eight billion, eight hundred sixty-nine million, four hundred thirty-one thousand, two hundred twenty".