399386708494 has 8 divisors (see below), whose sum is σ = 599108034168. Its totient is φ = 199684030440.

The previous prime is 399386708467. The next prime is 399386708519. The reversal of 399386708494 is 494807683993.

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, 4608237 + ... + 4694104.

It is an arithmetic number, because the mean of its divisors is an integer number (74888504271).

Almost surely, 2^399386708494 is an apocalyptic number.

399386708494 is a deficient number, since it is larger than the sum of its proper divisors (199721325674).

399386708494 is a wasteful number, since it uses less digits than its factorization.

399386708494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9323810.

The product of its (nonzero) digits is 282175488, while the sum is 70.

The spelling of 399386708494 in words is "three hundred ninety-nine billion, three hundred eighty-six million, seven hundred eight thousand, four hundred ninety-four".