490398117 has 12 divisors (see below), whose sum is σ = 718710720. Its totient is φ = 297210760.

The previous prime is 490398079. The next prime is 490398121. The reversal of 490398117 is 711893094.

It is a happy number.

It is not a de Polignac number, because 490398117 - 2⁶ = 490398053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490398137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 675117 + ... + 675842.

It is an arithmetic number, because the mean of its divisors is an integer number (59892560).

Almost surely, 2^490398117 is an apocalyptic number.

It is an amenable number.

490398117 is a deficient number, since it is larger than the sum of its proper divisors (228312603).

490398117 is a wasteful number, since it uses less digits than its factorization.

490398117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350984 (or 1350973 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 490398117 is about 22144.9343417406. The cubic root of 490398117 is about 788.5869720481.

The spelling of 490398117 in words is "four hundred ninety million, three hundred ninety-eight thousand, one hundred seventeen".