490399164 has 48 divisors (see below), whose sum is σ = 1315255200. Its totient is φ = 157828608.

The previous prime is 490399159. The next prime is 490399183. The reversal of 490399164 is 461993094.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75157 + ... + 81420.

It is an arithmetic number, because the mean of its divisors is an integer number (27401150).

Almost surely, 2^490399164 is an apocalyptic number.

It is an amenable number.

490399164 is an abundant number, since it is smaller than the sum of its proper divisors (824856036).

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

490399164 is a wasteful number, since it uses less digits than its factorization.

490399164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156619 (or 156611 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 490399164 is about 22144.9579814458. The cubic root of 490399164 is about 788.5875332587.

The spelling of 490399164 in words is "four hundred ninety million, three hundred ninety-nine thousand, one hundred sixty-four".