90132432 has 120 divisors (see below), whose sum is σ = 259233408. Its totient is φ = 26956800.

The previous prime is 90132431. The next prime is 90132451. The reversal of 90132432 is 23423109.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90132431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 332457 + ... + 332727.

Almost surely, 2^90132432 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 90132432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129616704).

90132432 is an abundant number, since it is smaller than the sum of its proper divisors (169100976).

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

90132432 is a wasteful number, since it uses less digits than its factorization.

90132432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 90132432 is about 9493.8101940159. The cubic root of 90132432 is about 448.3601748539.

It can be divided in two parts, 901 and 32432, that added together give a palindrome (33333).

The spelling of 90132432 in words is "ninety million, one hundred thirty-two thousand, four hundred thirty-two".