394636364 has 24 divisors (see below), whose sum is σ = 698576928. Its totient is φ = 195056640.

The previous prime is 394636343. The next prime is 394636367. The reversal of 394636364 is 463636493.

It is a super-2 number, since 2×394636364² = 311475719582280992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (394636367) 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, 127394 + ... + 130454.

It is an arithmetic number, because the mean of its divisors is an integer number (29107372).

Almost surely, 2^394636364 is an apocalyptic number.

It is an amenable number.

394636364 is a deficient number, since it is larger than the sum of its proper divisors (303940564).

394636364 is a wasteful number, since it uses less digits than its factorization.

394636364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3425 (or 3423 counting only the distinct ones).

The product of its digits is 839808, while the sum is 44.

The square root of 394636364 is about 19865.4565515117. The cubic root of 394636364 is about 733.4981683642.

The spelling of 394636364 in words is "three hundred ninety-four million, six hundred thirty-six thousand, three hundred sixty-four".