490493863 has 16 divisors (see below), whose sum is σ = 508092480. Its totient is φ = 473299200.

The previous prime is 490493827. The next prime is 490493879. The reversal of 490493863 is 368394094.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-490493863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490493813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 906373 + ... + 906913.

It is an arithmetic number, because the mean of its divisors is an integer number (31755780).

Almost surely, 2^490493863 is an apocalyptic number.

490493863 is a deficient number, since it is larger than the sum of its proper divisors (17598617).

490493863 is a wasteful number, since it uses less digits than its factorization.

490493863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858.

The product of its (nonzero) digits is 559872, while the sum is 46.

The square root of 490493863 is about 22147.0960398875. The cubic root of 490493863 is about 788.6382903085.

The spelling of 490493863 in words is "four hundred ninety million, four hundred ninety-three thousand, eight hundred sixty-three".