3939380 has 24 divisors (see below), whose sum is σ = 8410920. Its totient is φ = 1549440.

The previous prime is 3939379. The next prime is 3939421. The reversal of 3939380 is 839393.

It can be written as a sum of positive squares in 4 ways, for example, as 26896 + 3912484 = 164^2 + 1978^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3939380.

It is a congruent 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, 395 + ... + 2834.

It is an arithmetic number, because the mean of its divisors is an integer number (350455).

Almost surely, 2^3939380 is an apocalyptic number.

It is an amenable number.

3939380 is an abundant number, since it is smaller than the sum of its proper divisors (4471540).

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

3939380 is a wasteful number, since it uses less digits than its factorization.

3939380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3299 (or 3297 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 3939380 is about 1984.7871422397. The cubic root of 3939380 is about 157.9341177015.

The spelling of 3939380 in words is "three million, nine hundred thirty-nine thousand, three hundred eighty".