3966142 has 8 divisors (see below), whose sum is σ = 6075936. Its totient is φ = 1940832.

The previous prime is 3966139. The next prime is 3966161. The reversal of 3966142 is 2416693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-4 number, since 4×3966142⁴ (a number of 27 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21003 + ... + 21190.

It is an arithmetic number, because the mean of its divisors is an integer number (759492).

Almost surely, 2^3966142 is an apocalyptic number.

3966142 is a deficient number, since it is larger than the sum of its proper divisors (2109794).

3966142 is a wasteful number, since it uses less digits than its factorization.

3966142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42242.

The product of its digits is 7776, while the sum is 31.

The square root of 3966142 is about 1991.5175118487. The cubic root of 3966142 is about 158.2909503056.

The spelling of 3966142 in words is "three million, nine hundred sixty-six thousand, one hundred forty-two".