990043244 has 6 divisors (see below), whose sum is σ = 1732575684. Its totient is φ = 495021620.

The previous prime is 990043199. The next prime is 990043253. The reversal of 990043244 is 442340099.

990043244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123755402 + ... + 123755409.

It is an arithmetic number, because the mean of its divisors is an integer number (288762614).

Almost surely, 2^990043244 is an apocalyptic number.

It is an amenable number.

990043244 is a deficient number, since it is larger than the sum of its proper divisors (742532440).

990043244 is a wasteful number, since it uses less digits than its factorization.

990043244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247510815 (or 247510813 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 990043244 is about 31464.9526298706. The cubic root of 990043244 is about 996.6700047738.

The spelling of 990043244 in words is "nine hundred ninety million, forty-three thousand, two hundred forty-four".