490654566 has 24 divisors (see below), whose sum is σ = 1073614464. Its totient is φ = 161931600.

The previous prime is 490654531. The next prime is 490654589. The reversal of 490654566 is 665456094.

490654566 is a `hidden beast` number, since 49 + 0 + 6 + 545 + 66 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133126 + ... + 136761.

It is an arithmetic number, because the mean of its divisors is an integer number (44733936).

Almost surely, 2^490654566 is an apocalyptic number.

490654566 is an abundant number, since it is smaller than the sum of its proper divisors (582959898).

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

490654566 is a wasteful number, since it uses less digits than its factorization.

490654566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269996 (or 269993 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The square root of 490654566 is about 22150.7238256451. The cubic root of 490654566 is about 788.7244094292.

The spelling of 490654566 in words is "four hundred ninety million, six hundred fifty-four thousand, five hundred sixty-six".