394564984370 has 16 divisors (see below), whose sum is σ = 710365236120. Its totient is φ = 157793046144.

The previous prime is 394564984321. The next prime is 394564984379. The reversal of 394564984370 is 73489465493.

It can be written as a sum of positive squares in 4 ways, for example, as 363318412081 + 31246572289 = 602759^2 + 176767^2 .

It is not an unprimeable number, because it can be changed into a prime (394564984379) 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, 4068125 + ... + 4163984.

Almost surely, 2^394564984370 is an apocalyptic number.

394564984370 is a deficient number, since it is larger than the sum of its proper divisors (315800251750).

394564984370 is a wasteful number, since it uses less digits than its factorization.

394564984370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8236909.

The product of its (nonzero) digits is 78382080, while the sum is 62.

The spelling of 394564984370 in words is "three hundred ninety-four billion, five hundred sixty-four million, nine hundred eighty-four thousand, three hundred seventy".