90305032 has 16 divisors (see below), whose sum is σ = 169565760. Its totient is φ = 45087504.

The previous prime is 90305029. The next prime is 90305041. The reversal of 90305032 is 23050309.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 90304994 and 90305012.

It is an unprimeable number.

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, 1948 + ... + 13579.

It is an arithmetic number, because the mean of its divisors is an integer number (10597860).

Almost surely, 2^90305032 is an apocalyptic number.

It is an amenable number.

90305032 is a deficient number, since it is larger than the sum of its proper divisors (79260728).

90305032 is a wasteful number, since it uses less digits than its factorization.

90305032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16260 (or 16256 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 90305032 is about 9502.8959796475. The cubic root of 90305032 is about 448.6461896261.

The spelling of 90305032 in words is "ninety million, three hundred five thousand, thirty-two".