490554866 has 4 divisors (see below), whose sum is σ = 735832302. Its totient is φ = 245277432.

The previous prime is 490554853. The next prime is 490554887. The reversal of 490554866 is 668455094.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 387105625 + 103449241 = 19675^2 + 10171^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 490554866.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 122638715 + ... + 122638718.

Almost surely, 2^490554866 is an apocalyptic number.

490554866 is a deficient number, since it is larger than the sum of its proper divisors (245277436).

490554866 is a wasteful number, since it uses less digits than its factorization.

490554866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245277435.

The product of its (nonzero) digits is 1036800, while the sum is 47.

The square root of 490554866 is about 22148.4732205179. The cubic root of 490554866 is about 788.6709834171.

The spelling of 490554866 in words is "four hundred ninety million, five hundred fifty-four thousand, eight hundred sixty-six".