90432512 has 44 divisors (see below), whose sum is σ = 184721280. Its totient is φ = 44230656.

The previous prime is 90432499. The next prime is 90432523. The reversal of 90432512 is 21523409.

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, 47189 + ... + 49067.

Almost surely, 2^90432512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90432512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92360640).

90432512 is an abundant number, since it is smaller than the sum of its proper divisors (94288768).

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

90432512 is a wasteful number, since it uses less digits than its factorization.

90432512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1946 (or 1928 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 90432512 is about 9509.6010431563. The cubic root of 90432512 is about 448.8572023221.

The spelling of 90432512 in words is "ninety million, four hundred thirty-two thousand, five hundred twelve".