990594944 has 32 divisors (see below), whose sum is σ = 2077321800. Its totient is φ = 469228032.

The previous prime is 990594923. The next prime is 990594991. The reversal of 990594944 is 449495099.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

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 3 ways as a sum of consecutive naturals, for example, 201227 + ... + 206090.

Almost surely, 2^990594944 is an apocalyptic number.

It is an amenable number.

990594944 is an abundant number, since it is smaller than the sum of its proper divisors (1086726856).

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

990594944 is a wasteful number, since it uses less digits than its factorization.

990594944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407350 (or 407338 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 53.

The square root of 990594944 is about 31473.7183059136. The cubic root of 990594944 is about 996.8551013137.

The spelling of 990594944 in words is "nine hundred ninety million, five hundred ninety-four thousand, nine hundred forty-four".