3942944 has 12 divisors (see below), whose sum is σ = 7762734. Its totient is φ = 1971456.

The previous prime is 3942941. The next prime is 3942947. The reversal of 3942944 is 4492493.

It is an interprime number because it is at equal distance from previous prime (3942941) and next prime (3942947).

It can be written as a sum of positive squares in only one way, i.e., 2016400 + 1926544 = 1420^2 + 1388^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3942941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61577 + ... + 61640.

Almost surely, 2^3942944 is an apocalyptic number.

It is an amenable number.

3942944 is a deficient number, since it is larger than the sum of its proper divisors (3819790).

3942944 is a wasteful number, since it uses less digits than its factorization.

3942944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123227 (or 123219 counting only the distinct ones).

The product of its digits is 31104, while the sum is 35.

The square root of 3942944 is about 1985.6847685370. The cubic root of 3942944 is about 157.9817315844.

The spelling of 3942944 in words is "three million, nine hundred forty-two thousand, nine hundred forty-four".