490957263 has 24 divisors (see below), whose sum is σ = 758334096. Its totient is φ = 304992000.

The previous prime is 490957249. The next prime is 490957279. The reversal of 490957263 is 362759094.

It is a happy number.

490957263 is a `hidden beast` number, since 490 + 95 + 72 + 6 + 3 = 666.

It is not a de Polignac number, because 490957263 - 2⁸ = 490957007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490957213) 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 23 ways as a sum of consecutive naturals, for example, 433 + ... + 31338.

It is an arithmetic number, because the mean of its divisors is an integer number (31597254).

Almost surely, 2^490957263 is an apocalyptic number.

490957263 is a deficient number, since it is larger than the sum of its proper divisors (267376833).

490957263 is a wasteful number, since it uses less digits than its factorization.

490957263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31895 (or 31892 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The square root of 490957263 is about 22157.5554382698. Note that the first 3 decimals coincide. The cubic root of 490957263 is about 788.8865706523.

The spelling of 490957263 in words is "four hundred ninety million, nine hundred fifty-seven thousand, two hundred sixty-three".