90990112 has 24 divisors (see below), whose sum is σ = 179350416. Its totient is φ = 45440832.

The previous prime is 90990091. The next prime is 90990113. The reversal of 90990112 is 21109909.

It is not an unprimeable number, because it can be changed into a prime (90990113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47803 + ... + 49669.

It is an arithmetic number, because the mean of its divisors is an integer number (7472934).

Almost surely, 2^90990112 is an apocalyptic number.

It is an amenable number.

90990112 is a deficient number, since it is larger than the sum of its proper divisors (88360304).

90990112 is a wasteful number, since it uses less digits than its factorization.

90990112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3400 (or 3392 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 31.

The square root of 90990112 is about 9538.8737280666. The cubic root of 90990112 is about 449.7778524924. Note that the first 3 decimals are identical.

The spelling of 90990112 in words is "ninety million, nine hundred ninety thousand, one hundred twelve".