3942994 has 16 divisors (see below), whose sum is σ = 6792480. Its totient is φ = 1697760.

The previous prime is 3942989. The next prime is 3943007. The reversal of 3942994 is 4992493.

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, 4299 + ... + 5134.

It is an arithmetic number, because the mean of its divisors is an integer number (424530).

Almost surely, 2^3942994 is an apocalyptic number.

3942994 is a deficient number, since it is larger than the sum of its proper divisors (2849486).

3942994 is a wasteful number, since it uses less digits than its factorization.

3942994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9465.

The product of its digits is 69984, while the sum is 40.

The square root of 3942994 is about 1985.6973586123. The cubic root of 3942994 is about 157.9823993640.

The spelling of 3942994 in words is "three million, nine hundred forty-two thousand, nine hundred ninety-four".