90364920 has 64 divisors (see below), whose sum is σ = 271728000. Its totient is φ = 24041088.

The previous prime is 90364919. The next prime is 90364933. The reversal of 90364920 is 2946309.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88171 + ... + 89189.

It is an arithmetic number, because the mean of its divisors is an integer number (4245750).

Almost surely, 2^90364920 is an apocalyptic number.

It is an amenable number.

90364920 is an abundant number, since it is smaller than the sum of its proper divisors (181363080).

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

90364920 is a wasteful number, since it uses less digits than its factorization.

90364920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1772 (or 1768 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 90364920 is about 9506.0464968356. The cubic root of 90364920 is about 448.7453446237.

The spelling of 90364920 in words is "ninety million, three hundred sixty-four thousand, nine hundred twenty".