394309706738 has 8 divisors (see below), whose sum is σ = 591467443200. Its totient is φ = 197153892340.

The previous prime is 394309706699. The next prime is 394309706801. The reversal of 394309706738 is 837607903493.

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

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, 261563 + ... + 925761.

It is an arithmetic number, because the mean of its divisors is an integer number (73933430400).

Almost surely, 2^394309706738 is an apocalyptic number.

394309706738 is a deficient number, since it is larger than the sum of its proper divisors (197157736462).

394309706738 is a wasteful number, since it uses less digits than its factorization.

394309706738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961032.

The product of its (nonzero) digits is 20575296, while the sum is 59.

The spelling of 394309706738 in words is "three hundred ninety-four billion, three hundred nine million, seven hundred six thousand, seven hundred thirty-eight".