490991316 has 12 divisors (see below), whose sum is σ = 1145646432. Its totient is φ = 163663768.

The previous prime is 490991269. The next prime is 490991339. The reversal of 490991316 is 613199094.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20457960 + ... + 20457983.

It is an arithmetic number, because the mean of its divisors is an integer number (95470536).

Almost surely, 2^490991316 is an apocalyptic number.

It is an amenable number.

490991316 is an abundant number, since it is smaller than the sum of its proper divisors (654655116).

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

490991316 is a wasteful number, since it uses less digits than its factorization.

490991316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40915950 (or 40915948 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 490991316 is about 22158.3238535770. The cubic root of 490991316 is about 788.9048093975.

The spelling of 490991316 in words is "four hundred ninety million, nine hundred ninety-one thousand, three hundred sixteen".