408291056 has 20 divisors (see below), whose sum is σ = 804034104. Its totient is φ = 200798400.

The previous prime is 408291043. The next prime is 408291061. The reversal of 408291056 is 650192804.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208190 + ... + 210141.

Almost surely, 2^408291056 is an apocalyptic number.

It is an amenable number.

408291056 is a deficient number, since it is larger than the sum of its proper divisors (395743048).

408291056 is a wasteful number, since it uses less digits than its factorization.

408291056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418400 (or 418394 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 408291056 is about 20206.2133018535. The cubic root of 408291056 is about 741.8622780648.

The spelling of 408291056 in words is "four hundred eight million, two hundred ninety-one thousand, fifty-six".