990422944 has 48 divisors (see below), whose sum is σ = 2261746368. Its totient is φ = 418125312.

The previous prime is 990422929. The next prime is 990422947. The reversal of 990422944 is 449224099.

It is a self number, because there is not a number n which added to its sum of digits gives 990422944.

It is not an unprimeable number, because it can be changed into a prime (990422947) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 17989 + ... + 48004.

It is an arithmetic number, because the mean of its divisors is an integer number (47119716).

Almost surely, 2^990422944 is an apocalyptic number.

It is an amenable number.

990422944 is an abundant number, since it is smaller than the sum of its proper divisors (1271323424).

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

990422944 is a wasteful number, since it uses less digits than its factorization.

990422944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66077 (or 66069 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 990422944 is about 31470.9857487814. The cubic root of 990422944 is about 996.7974023174.

The spelling of 990422944 in words is "nine hundred ninety million, four hundred twenty-two thousand, nine hundred forty-four".