3942042 has 16 divisors (see below), whose sum is σ = 8490720. Its totient is φ = 1212912.

The previous prime is 3942041. The next prime is 3942047. The reversal of 3942042 is 2402493.

It is a happy number.

3942042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (3942041) 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, 25192 + ... + 25347.

It is an arithmetic number, because the mean of its divisors is an integer number (530670).

Almost surely, 2^3942042 is an apocalyptic number.

3942042 is an abundant number, since it is smaller than the sum of its proper divisors (4548678).

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

3942042 is a wasteful number, since it uses less digits than its factorization.

3942042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50557.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 3942042 is about 1985.4576298677. The cubic root of 3942042 is about 157.9696838700.

The spelling of 3942042 in words is "three million, nine hundred forty-two thousand, forty-two".