990318812 has 36 divisors (see below), whose sum is σ = 2034890424. Its totient is φ = 420446880.

The previous prime is 990318787. The next prime is 990318821. The reversal of 990318812 is 218813099.

It is a self number, because there is not a number n which added to its sum of digits gives 990318812.

It is a congruent number.

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, 2639 + ... + 44582.

It is an arithmetic number, because the mean of its divisors is an integer number (56524734).

Almost surely, 2^990318812 is an apocalyptic number.

It is an amenable number.

990318812 is an abundant number, since it is smaller than the sum of its proper divisors (1044571612).

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

990318812 is a wasteful number, since it uses less digits than its factorization.

990318812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47346 (or 47337 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 990318812 is about 31469.3312925458. The cubic root of 990318812 is about 996.7624670251.

The spelling of 990318812 in words is "nine hundred ninety million, three hundred eighteen thousand, eight hundred twelve".