90839232 has 224 divisors, whose sum is σ = 299923200. Its totient is φ = 27060480.

The previous prime is 90839137. The next prime is 90839233. The reversal of 90839232 is 23293809.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (90839233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1539619 + ... + 1539677.

Almost surely, 2^90839232 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 90839232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149961600).

90839232 is an abundant number, since it is smaller than the sum of its proper divisors (209083968).

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

90839232 is an equidigital number, since it uses as much as digits as its factorization.

90839232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 75 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 90839232 is about 9530.9617562972. The cubic root of 90839232 is about 449.5291074167.

The spelling of 90839232 in words is "ninety million, eight hundred thirty-nine thousand, two hundred thirty-two".