490400566 has 16 divisors (see below), whose sum is σ = 748964880. Its totient is φ = 240755680.

The previous prime is 490400531. The next prime is 490400567. The reversal of 490400566 is 665004094.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490400567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123240 + ... + 127156.

It is an arithmetic number, because the mean of its divisors is an integer number (46810305).

Almost surely, 2^490400566 is an apocalyptic number.

490400566 is a deficient number, since it is larger than the sum of its proper divisors (258564314).

490400566 is a wasteful number, since it uses less digits than its factorization.

490400566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5039.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 490400566 is about 22144.9896364844. The cubic root of 490400566 is about 788.5882847545.

The spelling of 490400566 in words is "four hundred ninety million, four hundred thousand, five hundred sixty-six".