3904340 has 24 divisors (see below), whose sum is σ = 8944992. Its totient is φ = 1419680.

The previous prime is 3904333. The next prime is 3904349. The reversal of 3904340 is 434093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3904349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8654 + ... + 9093.

It is an arithmetic number, because the mean of its divisors is an integer number (372708).

Almost surely, 2^3904340 is an apocalyptic number.

It is an amenable number.

3904340 is an abundant number, since it is smaller than the sum of its proper divisors (5040652).

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

3904340 is a wasteful number, since it uses less digits than its factorization.

3904340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17767 (or 17765 counting only the distinct ones).

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

The square root of 3904340 is about 1975.9402824984. The cubic root of 3904340 is about 157.4644582605.

The spelling of 3904340 in words is "three million, nine hundred four thousand, three hundred forty".