396783974942 has 8 divisors (see below), whose sum is σ = 595264960800. Its totient is φ = 198362321344.

The previous prime is 396783974921. The next prime is 396783974981. The reversal of 396783974942 is 249479387693.

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

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, 14816342 + ... + 14843097.

It is an arithmetic number, because the mean of its divisors is an integer number (74408120100).

Almost surely, 2^396783974942 is an apocalyptic number.

396783974942 is a deficient number, since it is larger than the sum of its proper divisors (198480985858).

396783974942 is a wasteful number, since it uses less digits than its factorization.

396783974942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29666130.

The product of its digits is 493807104, while the sum is 71.

The spelling of 396783974942 in words is "three hundred ninety-six billion, seven hundred eighty-three million, nine hundred seventy-four thousand, nine hundred forty-two".