3944142 has 12 divisors (see below), whose sum is σ = 8545680. Its totient is φ = 1314708.

The previous prime is 3944141. The next prime is 3944173. The reversal of 3944142 is 2414493.

It is a super-2 number, since 2×3944142² = 31112512232328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3944141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 109542 + ... + 109577.

It is an arithmetic number, because the mean of its divisors is an integer number (712140).

Almost surely, 2^3944142 is an apocalyptic number.

3944142 is an abundant number, since it is smaller than the sum of its proper divisors (4601538).

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

3944142 is a wasteful number, since it uses less digits than its factorization.

3944142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219127 (or 219124 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 3944142 is about 1985.9864047873. The cubic root of 3944142 is about 157.9977300320.

The spelling of 3944142 in words is "three million, nine hundred forty-four thousand, one hundred forty-two".