990239584 has 24 divisors (see below), whose sum is σ = 2002226688. Its totient is φ = 481737600.

The previous prime is 990239563. The next prime is 990239617. The reversal of 990239584 is 485932099.

990239584 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416992 + ... + 419359.

It is an arithmetic number, because the mean of its divisors is an integer number (83426112).

Almost surely, 2^990239584 is an apocalyptic number.

It is an amenable number.

990239584 is an abundant number, since it is smaller than the sum of its proper divisors (1011987104).

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

990239584 is a wasteful number, since it uses less digits than its factorization.

990239584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836398 (or 836390 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 49.

The square root of 990239584 is about 31468.0724544736. The cubic root of 990239584 is about 996.7358851467.

The spelling of 990239584 in words is "nine hundred ninety million, two hundred thirty-nine thousand, five hundred eighty-four".