90059904 has 256 divisors, whose sum is σ = 305510400. Its totient is φ = 25850880.

The previous prime is 90059861. The next prime is 90059917. The reversal of 90059904 is 40995009.

It is a super-2 number, since 2×90059904² = 16221572616978432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 874317 + ... + 874419.

It is an arithmetic number, because the mean of its divisors is an integer number (1193400).

Almost surely, 2^90059904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90059904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152755200).

90059904 is an abundant number, since it is smaller than the sum of its proper divisors (215450496).

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

90059904 is a wasteful number, since it uses less digits than its factorization.

90059904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 90059904 is about 9489.9896733347. The cubic root of 90059904 is about 448.2398800375.

The spelling of 90059904 in words is "ninety million, fifty-nine thousand, nine hundred four".