90380032 has 18 divisors (see below), whose sum is σ = 180407528. Its totient is φ = 45189888.

The previous prime is 90380027. The next prime is 90380039. The reversal of 90380032 is 23008309.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 90379979 and 90380006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90380039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176268 + ... + 176779.

Almost surely, 2^90380032 is an apocalyptic number.

It is an amenable number.

90380032 is a deficient number, since it is larger than the sum of its proper divisors (90027496).

90380032 is an equidigital number, since it uses as much as digits as its factorization.

90380032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353063 (or 353049 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 90380032 is about 9506.8413261188. The cubic root of 90380032 is about 448.7703582449.

The spelling of 90380032 in words is "ninety million, three hundred eighty thousand, thirty-two".