90319432 has 32 divisors (see below), whose sum is σ = 194414400. Its totient is φ = 38533824.

The previous prime is 90319403. The next prime is 90319457. The reversal of 90319432 is 23491309.

It is a junction number, because it is equal to n+sod(n) for n = 90319394 and 90319403.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9303 + ... + 16345.

It is an arithmetic number, because the mean of its divisors is an integer number (6075450).

Almost surely, 2^90319432 is an apocalyptic number.

It is an amenable number.

90319432 is an abundant number, since it is smaller than the sum of its proper divisors (104094968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90319432 is a wasteful number, since it uses less digits than its factorization.

90319432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7285 (or 7281 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 90319432 is about 9503.6536132163. The cubic root of 90319432 is about 448.6700353322.

The spelling of 90319432 in words is "ninety million, three hundred nineteen thousand, four hundred thirty-two".