394363836 has 48 divisors (see below), whose sum is σ = 1046214400. Its totient is φ = 128396016.

The previous prime is 394363817. The next prime is 394363883. The reversal of 394363836 is 638363493.

394363836 is a `hidden beast` number, since 3 + 9 + 4 + 3 + 638 + 3 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 394363791 and 394363800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37816 + ... + 47103.

Almost surely, 2^394363836 is an apocalyptic number.

394363836 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

394363836 is an abundant number, since it is smaller than the sum of its proper divisors (651850564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

394363836 is a wasteful number, since it uses less digits than its factorization.

394363836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84975 (or 84967 counting only the distinct ones).

The product of its digits is 839808, while the sum is 45.

The square root of 394363836 is about 19858.5960228814. The cubic root of 394363836 is about 733.3292830814.

The spelling of 394363836 in words is "three hundred ninety-four million, three hundred sixty-three thousand, eight hundred thirty-six".