3996942 has 16 divisors (see below), whose sum is σ = 8145360. Its totient is φ = 1307072.

The previous prime is 3996931. The next prime is 3996959. The reversal of 3996942 is 2496993.

It is a junction number, because it is equal to n+sod(n) for n = 3996894 and 3996903.

It is a congruent number.

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, 5967 + ... + 6602.

It is an arithmetic number, because the mean of its divisors is an integer number (509085).

Almost surely, 2^3996942 is an apocalyptic number.

3996942 is an abundant number, since it is smaller than the sum of its proper divisors (4148418).

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

3996942 is a wasteful number, since it uses less digits than its factorization.

3996942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12627.

The product of its digits is 104976, while the sum is 42.

The square root of 3996942 is about 1999.2353538291. The cubic root of 3996942 is about 158.6996426137.

The spelling of 3996942 in words is "three million, nine hundred ninety-six thousand, nine hundred forty-two".