3907940 has 24 divisors (see below), whose sum is σ = 8430072. Its totient is φ = 1520640.

The previous prime is 3907933. The next prime is 3907949. The reversal of 3907940 is 497093.

It is a happy number.

3907940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 440896 + 3467044 = 664^2 + 1862^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3907897 and 3907906.

It is not an unprimeable number, because it can be changed into a prime (3907949) 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 7 ways as a sum of consecutive naturals, for example, 1901 + ... + 3380.

It is an arithmetic number, because the mean of its divisors is an integer number (351253).

Almost surely, 2^3907940 is an apocalyptic number.

It is an amenable number.

3907940 is an abundant number, since it is smaller than the sum of its proper divisors (4522132).

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

3907940 is a wasteful number, since it uses less digits than its factorization.

3907940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5327 (or 5325 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 3907940 is about 1976.8510313122. The cubic root of 3907940 is about 157.5128401390.

The spelling of 3907940 in words is "three million, nine hundred seven thousand, nine hundred forty".