90020332 has 24 divisors (see below), whose sum is σ = 160665120. Its totient is φ = 44123520.

The previous prime is 90020257. The next prime is 90020339. The reversal of 90020332 is 23302009.

It is not an unprimeable number, because it can be changed into a prime (90020339) 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, 55144 + ... + 56752.

It is an arithmetic number, because the mean of its divisors is an integer number (6694380).

Almost surely, 2^90020332 is an apocalyptic number.

It is an amenable number.

90020332 is a deficient number, since it is larger than the sum of its proper divisors (70644788).

90020332 is a wasteful number, since it uses less digits than its factorization.

90020332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881 (or 1879 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 90020332 is about 9487.9045104807. The cubic root of 90020332 is about 448.1742187523.

The spelling of 90020332 in words is "ninety million, twenty thousand, three hundred thirty-two".