990293560940 has 48 divisors (see below), whose sum is σ = 2170751244480. Its totient is φ = 378769797120.

The previous prime is 990293560937. The next prime is 990293560951. The reversal of 990293560940 is 49065392099.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

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, 1044896 + ... + 1752824.

It is an arithmetic number, because the mean of its divisors is an integer number (45223984260).

Almost surely, 2^990293560940 is an apocalyptic number.

It is an amenable number.

990293560940 is an abundant number, since it is smaller than the sum of its proper divisors (1180457683540).

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

990293560940 is a wasteful number, since it uses less digits than its factorization.

990293560940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711002 (or 711000 counting only the distinct ones).

The product of its (nonzero) digits is 4723920, while the sum is 56.

The spelling of 990293560940 in words is "nine hundred ninety billion, two hundred ninety-three million, five hundred sixty thousand, nine hundred forty".