3940304 has 20 divisors (see below), whose sum is σ = 7666176. Its totient is φ = 1961952.

The previous prime is 3940303. The next prime is 3940309. The reversal of 3940304 is 4030493.

It is a super-2 number, since 2×3940304² = 31051991224832, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3940304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3940301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5807 + ... + 6449.

Almost surely, 2^3940304 is an apocalyptic number.

It is an amenable number.

3940304 is a deficient number, since it is larger than the sum of its proper divisors (3725872).

3940304 is a wasteful number, since it uses less digits than its factorization.

3940304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034 (or 1028 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 3940304 is about 1985.0198991446. The cubic root of 3940304 is about 157.9464647981.

Adding to 3940304 its reverse (4030493), we get a palindrome (7970797).

The spelling of 3940304 in words is "three million, nine hundred forty thousand, three hundred four".