990822312 has 48 divisors (see below), whose sum is σ = 2695343040. Its totient is φ = 328813728.

The previous prime is 990822281. The next prime is 990822347. The reversal of 990822312 is 213228099.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13968 + ... + 46655.

It is an arithmetic number, because the mean of its divisors is an integer number (56152980).

Almost surely, 2^990822312 is an apocalyptic number.

It is an amenable number.

990822312 is an abundant number, since it is smaller than the sum of its proper divisors (1704520728).

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

990822312 is a wasteful number, since it uses less digits than its factorization.

990822312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60862 (or 60855 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 990822312 is about 31477.3301282050. The cubic root of 990822312 is about 996.9313637703.

The spelling of 990822312 in words is "nine hundred ninety million, eight hundred twenty-two thousand, three hundred twelve".