90320368 has 20 divisors (see below), whose sum is σ = 176377600. Its totient is φ = 44803584.

The previous prime is 90320317. The next prime is 90320369. The reversal of 90320368 is 86302309.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90320369) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 20193 + ... + 24256.

It is an arithmetic number, because the mean of its divisors is an integer number (8818880).

Almost surely, 2^90320368 is an apocalyptic number.

It is an amenable number.

90320368 is a deficient number, since it is larger than the sum of its proper divisors (86057232).

90320368 is a wasteful number, since it uses less digits than its factorization.

90320368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44584 (or 44578 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 90320368 is about 9503.7028573078. The cubic root of 90320368 is about 448.6715852154.

The spelling of 90320368 in words is "ninety million, three hundred twenty thousand, three hundred sixty-eight".