90283880 has 16 divisors (see below), whose sum is σ = 203138820. Its totient is φ = 36113536.

The previous prime is 90283867. The next prime is 90283909. The reversal of 90283880 is 8838209.

It can be written as a sum of positive squares in 2 ways, for example, as 83429956 + 6853924 = 9134^2 + 2618^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1128509 + ... + 1128588.

Almost surely, 2^90283880 is an apocalyptic number.

It is an amenable number.

90283880 is an abundant number, since it is smaller than the sum of its proper divisors (112854940).

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

90283880 is a wasteful number, since it uses less digits than its factorization.

90283880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2257108 (or 2257104 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 90283880 is about 9501.7829905760. The cubic root of 90283880 is about 448.6111583364.

The spelling of 90283880 in words is "ninety million, two hundred eighty-three thousand, eight hundred eighty".