90022388 has 24 divisors (see below), whose sum is σ = 166596864. Its totient is φ = 42494400.

The previous prime is 90022379. The next prime is 90022393. The reversal of 90022388 is 88322009.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3770 + ... + 13937.

It is an arithmetic number, because the mean of its divisors is an integer number (6941536).

Almost surely, 2^90022388 is an apocalyptic number.

It is an amenable number.

90022388 is a deficient number, since it is larger than the sum of its proper divisors (76574476).

90022388 is a wasteful number, since it uses less digits than its factorization.

90022388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17783 (or 17781 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 90022388 is about 9488.0128583387. The cubic root of 90022388 is about 448.1776307192.

The spelling of 90022388 in words is "ninety million, twenty-two thousand, three hundred eighty-eight".