90299592 has 24 divisors (see below), whose sum is σ = 244561590. Its totient is φ = 30099840.

The previous prime is 90299579. The next prime is 90299603. The reversal of 90299592 is 29599209.

It can be written as a sum of positive squares in only one way, i.e., 87497316 + 2802276 = 9354^2 + 1674^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 627009 + ... + 627152.

Almost surely, 2^90299592 is an apocalyptic number.

It is an amenable number.

90299592 is an abundant number, since it is smaller than the sum of its proper divisors (154261998).

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

90299592 is a wasteful number, since it uses less digits than its factorization.

90299592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254173 (or 1254166 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 45.

The square root of 90299592 is about 9502.6097468011. The cubic root of 90299592 is about 448.6371805885.

The spelling of 90299592 in words is "ninety million, two hundred ninety-nine thousand, five hundred ninety-two".