990810456 has 32 divisors (see below), whose sum is σ = 2622734640. Its totient is φ = 310842368.

The previous prime is 990810419. The next prime is 990810463. The reversal of 990810456 is 654018099.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1213821 + ... + 1214636.

Almost surely, 2^990810456 is an apocalyptic number.

It is an amenable number.

990810456 is an abundant number, since it is smaller than the sum of its proper divisors (1631924184).

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

990810456 is a wasteful number, since it uses less digits than its factorization.

990810456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428483 (or 2428479 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 990810456 is about 31477.1418016312. The cubic root of 990810456 is about 996.9273873879.

The spelling of 990810456 in words is "nine hundred ninety million, eight hundred ten thousand, four hundred fifty-six".