396047644 has 12 divisors (see below), whose sum is σ = 695049264. Its totient is φ = 197462144.

The previous prime is 396047573. The next prime is 396047651. The reversal of 396047644 is 446740693.

It is a self number, because there is not a number n which added to its sum of digits gives 396047644.

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, 138832 + ... + 141655.

It is an arithmetic number, because the mean of its divisors is an integer number (57920772).

Almost surely, 2^396047644 is an apocalyptic number.

It is an amenable number.

396047644 is a deficient number, since it is larger than the sum of its proper divisors (299001620).

396047644 is a wasteful number, since it uses less digits than its factorization.

396047644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280844 (or 280842 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 43.

The square root of 396047644 is about 19900.9458066696. The cubic root of 396047644 is about 734.3714953543.

The spelling of 396047644 in words is "three hundred ninety-six million, forty-seven thousand, six hundred forty-four".