864090228 has 24 divisors (see below), whose sum is σ = 2019769920. Its totient is φ = 287521600.

The previous prime is 864090209. The next prime is 864090233. The reversal of 864090228 is 822090468.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56448 + ... + 70103.

It is an arithmetic number, because the mean of its divisors is an integer number (84157080).

Almost surely, 2^864090228 is an apocalyptic number.

It is an amenable number.

864090228 is an abundant number, since it is smaller than the sum of its proper divisors (1155679692).

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

864090228 is a wasteful number, since it uses less digits than its factorization.

864090228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127127 (or 127125 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 864090228 is about 29395.4116827780. The cubic root of 864090228 is about 952.4737846616.

The spelling of 864090228 in words is "eight hundred sixty-four million, ninety thousand, two hundred twenty-eight".