90392980 has 48 divisors (see below), whose sum is σ = 194647824. Its totient is φ = 35251200.

The previous prime is 90392977. The next prime is 90393007. The reversal of 90392980 is 8929309.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1052676 + 89340304 = 1026^2 + 9452^2 .

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, 147154 + ... + 147766.

It is an arithmetic number, because the mean of its divisors is an integer number (4055163).

Almost surely, 2^90392980 is an apocalyptic number.

It is an amenable number.

90392980 is an abundant number, since it is smaller than the sum of its proper divisors (104254844).

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

90392980 is a wasteful number, since it uses less digits than its factorization.

90392980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796 (or 794 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 90392980 is about 9507.5222850120. The cubic root of 90392980 is about 448.7917877614.

The spelling of 90392980 in words is "ninety million, three hundred ninety-two thousand, nine hundred eighty".