394031705494 has 16 divisors (see below), whose sum is σ = 677641023648. Its totient is φ = 168331205952.

The previous prime is 394031705491. The next prime is 394031705503. The reversal of 394031705494 is 494507130493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394031705491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44955877 + ... + 44964640.

It is an arithmetic number, because the mean of its divisors is an integer number (42352563978).

Almost surely, 2^394031705494 is an apocalyptic number.

394031705494 is a deficient number, since it is larger than the sum of its proper divisors (283609318154).

394031705494 is a wasteful number, since it uses less digits than its factorization.

394031705494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89920839.

The product of its (nonzero) digits is 1632960, while the sum is 49.

The spelling of 394031705494 in words is "three hundred ninety-four billion, thirty-one million, seven hundred five thousand, four hundred ninety-four".