490444668 has 36 divisors (see below), whose sum is σ = 1416840880. Its totient is φ = 140126976.

The previous prime is 490444667. The next prime is 490444727. The reversal of 490444668 is 866444094.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490444667) by changing a digit.

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, 972853 + ... + 973356.

Almost surely, 2^490444668 is an apocalyptic number.

It is an amenable number.

490444668 is an abundant number, since it is smaller than the sum of its proper divisors (926396212).

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

490444668 is a wasteful number, since it uses less digits than its factorization.

490444668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1946226 (or 1946221 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The square root of 490444668 is about 22145.9853698136. The cubic root of 490444668 is about 788.6119234426.

The spelling of 490444668 in words is "four hundred ninety million, four hundred forty-four thousand, six hundred sixty-eight".