490910651 has 16 divisors (see below), whose sum is σ = 612695040. Its totient is φ = 382121280.

The previous prime is 490910647. The next prime is 490910677. The reversal of 490910651 is 156019094.

It is a cyclic number.

It is not a de Polignac number, because 490910651 - 2² = 490910647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490910611) 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 15 ways as a sum of consecutive naturals, for example, 84110 + ... + 89756.

It is an arithmetic number, because the mean of its divisors is an integer number (38293440).

Almost surely, 2^490910651 is an apocalyptic number.

490910651 is a deficient number, since it is larger than the sum of its proper divisors (121784389).

490910651 is a wasteful number, since it uses less digits than its factorization.

490910651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6794.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 490910651 is about 22156.5035824699. The cubic root of 490910651 is about 788.8616039547.

The spelling of 490910651 in words is "four hundred ninety million, nine hundred ten thousand, six hundred fifty-one".