490656630 has 32 divisors (see below), whose sum is σ = 1209405024. Its totient is φ = 127305216.

The previous prime is 490656587. The next prime is 490656637. The reversal of 490656630 is 36656094.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490656637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219907 + ... + 222126.

It is an arithmetic number, because the mean of its divisors is an integer number (37793907).

Almost surely, 2^490656630 is an apocalyptic number.

490656630 is an abundant number, since it is smaller than the sum of its proper divisors (718748394).

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

490656630 is a wasteful number, since it uses less digits than its factorization.

490656630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442080.

The product of its (nonzero) digits is 116640, while the sum is 39.

The square root of 490656630 is about 22150.7704154957. The cubic root of 490656630 is about 788.7255153838.

The spelling of 490656630 in words is "four hundred ninety million, six hundred fifty-six thousand, six hundred thirty".