90324992 has 60 divisors (see below), whose sum is σ = 186771900. Its totient is φ = 43646976.

The previous prime is 90324977. The next prime is 90325003. The reversal of 90324992 is 29942309.

It can be written as a sum of positive squares in 2 ways, for example, as 46022656 + 44302336 = 6784^2 + 6656^2 .

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, 606134 + ... + 606282.

It is an arithmetic number, because the mean of its divisors is an integer number (3112865).

Almost surely, 2^90324992 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 90324992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93385950).

90324992 is an abundant number, since it is smaller than the sum of its proper divisors (96446908).

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

90324992 is an equidigital number, since it uses as much as digits as its factorization.

90324992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 90324992 is about 9503.9461277934. The cubic root of 90324992 is about 448.6792417461.

The spelling of 90324992 in words is "ninety million, three hundred twenty-four thousand, nine hundred ninety-two".