990457316 has 12 divisors (see below), whose sum is σ = 1789213440. Its totient is φ = 479253480.

The previous prime is 990457309. The next prime is 990457319. The reversal of 990457316 is 613754099.

990457316 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (990457319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3993656 + ... + 3993903.

It is an arithmetic number, because the mean of its divisors is an integer number (149101120).

Almost surely, 2^990457316 is an apocalyptic number.

It is an amenable number.

990457316 is a deficient number, since it is larger than the sum of its proper divisors (798756124).

990457316 is a wasteful number, since it uses less digits than its factorization.

990457316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7987594 (or 7987592 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 990457316 is about 31471.5318343420. The cubic root of 990457316 is about 996.8089332578.

The spelling of 990457316 in words is "nine hundred ninety million, four hundred fifty-seven thousand, three hundred sixteen".