3994394364 has 48 divisors (see below), whose sum is σ = 10371191040. Its totient is φ = 1329490800.

The previous prime is 3994394329. The next prime is 3994394387. The reversal of 3994394364 is 4634934993.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 3994394364.

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, 46689 + ... + 100839.

It is an arithmetic number, because the mean of its divisors is an integer number (216066480).

Almost surely, 2^3994394364 is an apocalyptic number.

It is an amenable number.

3994394364 is an abundant number, since it is smaller than the sum of its proper divisors (6376796676).

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

3994394364 is a wasteful number, since it uses less digits than its factorization.

3994394364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54847 (or 54839 counting only the distinct ones).

The product of its digits is 7558272, while the sum is 54.

The square root of 3994394364 is about 63201.2212223783. The cubic root of 3994394364 is about 1586.6591725944.

The spelling of 3994394364 in words is "three billion, nine hundred ninety-four million, three hundred ninety-four thousand, three hundred sixty-four".