90989132 has 24 divisors (see below), whose sum is σ = 171879456. Its totient is φ = 41897088.

The previous prime is 90989131. The next prime is 90989141. The reversal of 90989132 is 23198909.

It is a super-2 number, since 2×90989132² = 16558044284226848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 90989132.

It is not an unprimeable number, because it can be changed into a prime (90989131) 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, 23528 + ... + 27120.

It is an arithmetic number, because the mean of its divisors is an integer number (7161644).

Almost surely, 2^90989132 is an apocalyptic number.

It is an amenable number.

90989132 is a deficient number, since it is larger than the sum of its proper divisors (80890324).

90989132 is a wasteful number, since it uses less digits than its factorization.

90989132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4097 (or 4095 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 90989132 is about 9538.8223591804. The cubic root of 90989132 is about 449.7762377240.

The spelling of 90989132 in words is "ninety million, nine hundred eighty-nine thousand, one hundred thirty-two".