990596736 has 128 divisors (see below), whose sum is σ = 2995372800. Its totient is φ = 322099200.

The previous prime is 990596707. The next prime is 990596743. The reversal of 990596736 is 637695099.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (54).

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 15 ways as a sum of consecutive naturals, for example, 138201 + ... + 145191.

It is an arithmetic number, because the mean of its divisors is an integer number (23401350).

Almost surely, 2^990596736 is an apocalyptic number.

990596736 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 990596736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1497686400).

990596736 is an abundant number, since it is smaller than the sum of its proper divisors (2004776064).

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

990596736 is a wasteful number, since it uses less digits than its factorization.

990596736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7055 (or 7037 counting only the distinct ones).

The product of its (nonzero) digits is 2755620, while the sum is 54.

The square root of 990596736 is about 31473.7467740973. The cubic root of 990596736 is about 996.8557024215.

The spelling of 990596736 in words is "nine hundred ninety million, five hundred ninety-six thousand, seven hundred thirty-six".