90408372 has 24 divisors (see below), whose sum is σ = 211298976. Its totient is φ = 30086688.

The previous prime is 90408371. The next prime is 90408481. The reversal of 90408372 is 27380409.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90408371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1858 + ... + 13574.

It is an arithmetic number, because the mean of its divisors is an integer number (8804124).

Almost surely, 2^90408372 is an apocalyptic number.

It is an amenable number.

90408372 is an abundant number, since it is smaller than the sum of its proper divisors (120890604).

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

90408372 is a wasteful number, since it uses less digits than its factorization.

90408372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12367 (or 12365 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 90408372 is about 9508.3317148699. The cubic root of 90408372 is about 448.8172595445.

The spelling of 90408372 in words is "ninety million, four hundred eight thousand, three hundred seventy-two".