990406316 has 12 divisors (see below), whose sum is σ = 1743230832. Its totient is φ = 492340368.

The previous prime is 990406279. The next prime is 990406357. The reversal of 990406316 is 613604099.

It is a self number, because there is not a number n which added to its sum of digits gives 990406316.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 714920 + ... + 716303.

It is an arithmetic number, because the mean of its divisors is an integer number (145269236).

Almost surely, 2^990406316 is an apocalyptic number.

It is an amenable number.

990406316 is a deficient number, since it is larger than the sum of its proper divisors (752824516).

990406316 is a wasteful number, since it uses less digits than its factorization.

990406316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431400 (or 1431398 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 990406316 is about 31470.7215678319. The cubic root of 990406316 is about 996.7918239463.

The spelling of 990406316 in words is "nine hundred ninety million, four hundred six thousand, three hundred sixteen".