408495566 has 12 divisors (see below), whose sum is σ = 634603632. Its totient is φ = 197203944.

The previous prime is 408495559. The next prime is 408495613. The reversal of 408495566 is 665594804.

It is a self number, because there is not a number n which added to its sum of digits gives 408495566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119750 + ... + 123113.

It is an arithmetic number, because the mean of its divisors is an integer number (52883636).

Almost surely, 2^408495566 is an apocalyptic number.

408495566 is a deficient number, since it is larger than the sum of its proper divisors (226108066).

408495566 is a wasteful number, since it uses less digits than its factorization.

408495566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242923 (or 242894 counting only the distinct ones).

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

The square root of 408495566 is about 20211.2732404468. The cubic root of 408495566 is about 741.9861218504.

The spelling of 408495566 in words is "four hundred eight million, four hundred ninety-five thousand, five hundred sixty-six".