90344992 has 24 divisors (see below), whose sum is σ = 178092432. Its totient is φ = 45115200.

The previous prime is 90344983. The next prime is 90344993. The reversal of 90344992 is 29944309.

It is not an unprimeable number, because it can be changed into a prime (90344993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36267 + ... + 38677.

It is an arithmetic number, because the mean of its divisors is an integer number (7420518).

Almost surely, 2^90344992 is an apocalyptic number.

It is an amenable number.

90344992 is a deficient number, since it is larger than the sum of its proper divisors (87747440).

90344992 is a wasteful number, since it uses less digits than its factorization.

90344992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3592 (or 3584 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 90344992 is about 9504.9982640714. The cubic root of 90344992 is about 448.7123552192.

The spelling of 90344992 in words is "ninety million, three hundred forty-four thousand, nine hundred ninety-two".