490651268 has 12 divisors (see below), whose sum is σ = 858979212. Its totient is φ = 245228640.

The previous prime is 490651267. The next prime is 490651277. The reversal of 490651268 is 862156094.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 267387904 + 223263364 = 16352^2 + 14942^2 .

It is not an unprimeable number, because it can be changed into a prime (490651267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12203 + ... + 33618.

It is an arithmetic number, because the mean of its divisors is an integer number (71581601).

Almost surely, 2^490651268 is an apocalyptic number.

It is an amenable number.

490651268 is a deficient number, since it is larger than the sum of its proper divisors (368327944).

490651268 is a wasteful number, since it uses less digits than its factorization.

490651268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48502 (or 48500 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 490651268 is about 22150.6493810001. The cubic root of 490651268 is about 788.7226422532.

The spelling of 490651268 in words is "four hundred ninety million, six hundred fifty-one thousand, two hundred sixty-eight".