990032844 has 48 divisors (see below), whose sum is σ = 2329393248. Its totient is φ = 327264768.

The previous prime is 990032837. The next prime is 990032851. The reversal of 990032844 is 448230099.

990032844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (990032837) and next prime (990032851).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 885774 + ... + 886890.

It is an arithmetic number, because the mean of its divisors is an integer number (48529026).

Almost surely, 2^990032844 is an apocalyptic number.

It is an amenable number.

990032844 is an abundant number, since it is smaller than the sum of its proper divisors (1339360404).

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

990032844 is a wasteful number, since it uses less digits than its factorization.

990032844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674 (or 1672 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 990032844 is about 31464.7873661972. The cubic root of 990032844 is about 996.6665148911. Note that the first 3 decimals are identical.

The spelling of 990032844 in words is "nine hundred ninety million, thirty-two thousand, eight hundred forty-four".