3940725 has 12 divisors (see below), whose sum is σ = 6515456. Its totient is φ = 2101680.

The previous prime is 3940721. The next prime is 3940747. The reversal of 3940725 is 5270493.

3940725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3940725 - 2² = 3940721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3940692 and 3940701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3940721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26197 + ... + 26346.

Almost surely, 2^3940725 is an apocalyptic number.

It is an amenable number.

3940725 is a deficient number, since it is larger than the sum of its proper divisors (2574731).

3940725 is a wasteful number, since it uses less digits than its factorization.

3940725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52556 (or 52551 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 3940725 is about 1985.1259405892. The cubic root of 3940725 is about 157.9520898373.

The spelling of 3940725 in words is "three million, nine hundred forty thousand, seven hundred twenty-five".