490189794 has 16 divisors (see below), whose sum is σ = 1012005120. Its totient is φ = 158125680.

The previous prime is 490189769. The next prime is 490189807. The reversal of 490189794 is 497981094.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1317529 + ... + 1317900.

It is an arithmetic number, because the mean of its divisors is an integer number (63250320).

Almost surely, 2^490189794 is an apocalyptic number.

490189794 is an abundant number, since it is smaller than the sum of its proper divisors (521815326).

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

490189794 is a wasteful number, since it uses less digits than its factorization.

490189794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2635465.

The product of its (nonzero) digits is 653184, while the sum is 51.

The square root of 490189794 is about 22140.2302156053. The cubic root of 490189794 is about 788.4752913095.

The spelling of 490189794 in words is "four hundred ninety million, one hundred eighty-nine thousand, seven hundred ninety-four".