396791438 has 8 divisors (see below), whose sum is σ = 598978632. Its totient is φ = 197131896.

The previous prime is 396791429. The next prime is 396791449. The reversal of 396791438 is 834197693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

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, 631520 + ... + 632147.

It is an arithmetic number, because the mean of its divisors is an integer number (74872329).

Almost surely, 2^396791438 is an apocalyptic number.

396791438 is a deficient number, since it is larger than the sum of its proper divisors (202187194).

396791438 is a wasteful number, since it uses less digits than its factorization.

396791438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263826.

The product of its digits is 979776, while the sum is 50.

The square root of 396791438 is about 19919.6244442510. The cubic root of 396791438 is about 734.8309346285.

The spelling of 396791438 in words is "three hundred ninety-six million, seven hundred ninety-one thousand, four hundred thirty-eight".