90338912 has 36 divisors (see below), whose sum is σ = 181143396. Its totient is φ = 44349120.

The previous prime is 90338903. The next prime is 90338947. The reversal of 90338912 is 21983309.

It is a super-2 number, since 2×90338912² = 16322238042687488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 110987 + ... + 111797.

It is an arithmetic number, because the mean of its divisors is an integer number (5031761).

Almost surely, 2^90338912 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 90338912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90571698).

90338912 is an abundant number, since it is smaller than the sum of its proper divisors (90804484).

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

90338912 is an equidigital number, since it uses as much as digits as its factorization.

90338912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939 (or 872 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 90338912 is about 9504.6784269643. The cubic root of 90338912 is about 448.7022892404.

The spelling of 90338912 in words is "ninety million, three hundred thirty-eight thousand, nine hundred twelve".