90294432088 has 24 divisors (see below), whose sum is σ = 196943213700. Its totient is φ = 38697613584.

The previous prime is 90294432071. The next prime is 90294432101. The reversal of 90294432088 is 88023449209.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 115171078 + ... + 115171861.

Almost surely, 2^90294432088 is an apocalyptic number.

90294432088 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

It is an amenable number.

90294432088 is an abundant number, since it is smaller than the sum of its proper divisors (106648781612).

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

90294432088 is a wasteful number, since it uses less digits than its factorization.

90294432088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230342959 (or 230342948 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 49.

The spelling of 90294432088 in words is "ninety billion, two hundred ninety-four million, four hundred thirty-two thousand, eighty-eight".