90089180 has 24 divisors (see below), whose sum is σ = 189550368. Its totient is φ = 35966528.

The previous prime is 90089179. The next prime is 90089189. The reversal of 90089180 is 8198009.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 90089180.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90089189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7097 + ... + 15183.

It is an arithmetic number, because the mean of its divisors is an integer number (7897932).

Almost surely, 2^90089180 is an apocalyptic number.

It is an amenable number.

90089180 is an abundant number, since it is smaller than the sum of its proper divisors (99461188).

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

90089180 is a wasteful number, since it uses less digits than its factorization.

90089180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8653 (or 8651 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 35.

The square root of 90089180 is about 9491.5320154335. The cubic root of 90089180 is about 448.2884449314.

The spelling of 90089180 in words is "ninety million, eighty-nine thousand, one hundred eighty".