394744536 has 64 divisors (see below), whose sum is σ = 1098367200. Its totient is φ = 131359104.

The previous prime is 394744523. The next prime is 394744541. The reversal of 394744536 is 635447493.

394744536 is a `hidden beast` number, since 39 + 47 + 44 + 536 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 394744491 and 394744500.

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, 171006 + ... + 173298.

Almost surely, 2^394744536 is an apocalyptic number.

394744536 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

394744536 is an abundant number, since it is smaller than the sum of its proper divisors (703622664).

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

394744536 is a wasteful number, since it uses less digits than its factorization.

394744536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3105 (or 3095 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 45.

The square root of 394744536 is about 19868.1789804703. The cubic root of 394744536 is about 733.5651808705.

The spelling of 394744536 in words is "three hundred ninety-four million, seven hundred forty-four thousand, five hundred thirty-six".