90990024 has 32 divisors (see below), whose sum is σ = 237366720. Its totient is φ = 29011136.

The previous prime is 90990019. The next prime is 90990037. The reversal of 90990024 is 42009909.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81867 + ... + 82970.

It is an arithmetic number, because the mean of its divisors is an integer number (7417710).

Almost surely, 2^90990024 is an apocalyptic number.

It is an amenable number.

90990024 is an abundant number, since it is smaller than the sum of its proper divisors (146376696).

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

90990024 is a wasteful number, since it uses less digits than its factorization.

90990024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164869 (or 164865 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 90990024 is about 9538.8691153616. The cubic root of 90990024 is about 449.7777074932. Note that the first 4 decimals are identical.

The spelling of 90990024 in words is "ninety million, nine hundred ninety thousand, twenty-four".