3940904 has 32 divisors (see below), whose sum is σ = 8488800. Its totient is φ = 1696320.

The previous prime is 3940891. The next prime is 3940931. The reversal of 3940904 is 4090493.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 494 + ... + 2850.

It is an arithmetic number, because the mean of its divisors is an integer number (265275).

Almost surely, 2^3940904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3940904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4244400).

3940904 is an abundant number, since it is smaller than the sum of its proper divisors (4547896).

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

3940904 is a wasteful number, since it uses less digits than its factorization.

3940904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2393 (or 2389 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 3940904 is about 1985.1710253779. The cubic root of 3940904 is about 157.9544813597.

The spelling of 3940904 in words is "three million, nine hundred forty thousand, nine hundred four".