90318560 has 24 divisors (see below), whose sum is σ = 213377976. Its totient is φ = 36127360.

The previous prime is 90318559. The next prime is 90318577. The reversal of 90318560 is 6581309.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 282086 + ... + 282405.

It is an arithmetic number, because the mean of its divisors is an integer number (8890749).

Almost surely, 2^90318560 is an apocalyptic number.

It is an amenable number.

90318560 is an abundant number, since it is smaller than the sum of its proper divisors (123059416).

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

90318560 is a wasteful number, since it uses less digits than its factorization.

90318560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564506 (or 564498 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 90318560 is about 9503.6077360127. The cubic root of 90318560 is about 448.6685914143.

Adding to 90318560 its reverse (6581309), we get a palindrome (96899869).

The spelling of 90318560 in words is "ninety million, three hundred eighteen thousand, five hundred sixty".