490664636 has 36 divisors (see below), whose sum is σ = 1089662616. Its totient is φ = 191167200.

The previous prime is 490664611. The next prime is 490664641. The reversal of 490664636 is 636466094.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 111635 + ... + 115946.

It is an arithmetic number, because the mean of its divisors is an integer number (30268406).

Almost surely, 2^490664636 is an apocalyptic number.

It is an amenable number.

490664636 is an abundant number, since it is smaller than the sum of its proper divisors (598997980).

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

490664636 is a wasteful number, since it uses less digits than its factorization.

490664636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227610 (or 227601 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 44.

The square root of 490664636 is about 22150.9511308205. The cubic root of 490664636 is about 788.7298052148.

The spelling of 490664636 in words is "four hundred ninety million, six hundred sixty-four thousand, six hundred thirty-six".