90049924 has 12 divisors (see below), whose sum is σ = 158791248. Its totient is φ = 44681000.

The previous prime is 90049903. The next prime is 90049931. The reversal of 90049924 is 42994009.

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, 85402 + ... + 86449.

It is an arithmetic number, because the mean of its divisors is an integer number (13232604).

Almost surely, 2^90049924 is an apocalyptic number.

It is an amenable number.

90049924 is a deficient number, since it is larger than the sum of its proper divisors (68741324).

90049924 is a wasteful number, since it uses less digits than its factorization.

90049924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171986 (or 171984 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 90049924 is about 9489.4638415455. The cubic root of 90049924 is about 448.2233221723.

The spelling of 90049924 in words is "ninety million, forty-nine thousand, nine hundred twenty-four".