408494672 has 40 divisors (see below), whose sum is σ = 812198016. Its totient is φ = 198937856.

The previous prime is 408494633. The next prime is 408494731. The reversal of 408494672 is 276494804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169508 + ... + 171900.

Almost surely, 2^408494672 is an apocalyptic number.

It is an amenable number.

408494672 is a deficient number, since it is larger than the sum of its proper divisors (403703344).

408494672 is a wasteful number, since it uses less digits than its factorization.

408494672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2675 (or 2669 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 44.

The square root of 408494672 is about 20211.2511240645. The cubic root of 408494672 is about 741.9855805666.

The spelling of 408494672 in words is "four hundred eight million, four hundred ninety-four thousand, six hundred seventy-two".