3940938 has 12 divisors (see below), whose sum is σ = 8538738. Its totient is φ = 1313640.

The previous prime is 3940933. The next prime is 3940939. The reversal of 3940938 is 8390493.

It can be written as a sum of positive squares in only one way, i.e., 3932289 + 8649 = 1983^2 + 93^2 .

It is not an unprimeable number, because it can be changed into a prime (3940931) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 109453 + ... + 109488.

Almost surely, 2^3940938 is an apocalyptic number.

3940938 is an abundant number, since it is smaller than the sum of its proper divisors (4597800).

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

3940938 is a wasteful number, since it uses less digits than its factorization.

3940938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218949 (or 218946 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 3940938 is about 1985.1795888534. The cubic root of 3940938 is about 157.9549356072.

The spelling of 3940938 in words is "three million, nine hundred forty thousand, nine hundred thirty-eight".