3943942 has 16 divisors (see below), whose sum is σ = 6240240. Its totient is φ = 1866592.

The previous prime is 3943939. The next prime is 3943957. The reversal of 3943942 is 2493493.

It is a junction number, because it is equal to n+sod(n) for n = 3943898 and 3943907.

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, 2433 + ... + 3715.

It is an arithmetic number, because the mean of its divisors is an integer number (390015).

Almost surely, 2^3943942 is an apocalyptic number.

3943942 is a deficient number, since it is larger than the sum of its proper divisors (2296298).

3943942 is a wasteful number, since it uses less digits than its factorization.

3943942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367.

The product of its digits is 23328, while the sum is 34.

The square root of 3943942 is about 1985.9360513370. The cubic root of 3943942 is about 157.9950593979.

The spelling of 3943942 in words is "three million, nine hundred forty-three thousand, nine hundred forty-two".