90331384 has 48 divisors (see below), whose sum is σ = 199692360. Its totient is φ = 37766400.

The previous prime is 90331337. The next prime is 90331391. The reversal of 90331384 is 48313309.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 321324 + ... + 321604.

Almost surely, 2^90331384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90331384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99846180).

90331384 is an abundant number, since it is smaller than the sum of its proper divisors (109360976).

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

90331384 is a wasteful number, since it uses less digits than its factorization.

90331384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592 (or 307 counting only the distinct ones).

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

The square root of 90331384 is about 9504.2824032117. The cubic root of 90331384 is about 448.6898253435.

The spelling of 90331384 in words is "ninety million, three hundred thirty-one thousand, three hundred eighty-four".