3992842 has 16 divisors (see below), whose sum is σ = 6874560. Its totient is φ = 1703808.

The previous prime is 3992837. The next prime is 3992843. The reversal of 3992842 is 2482993.

It is not an unprimeable number, because it can be changed into a prime (3992843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3834 + ... + 4762.

It is an arithmetic number, because the mean of its divisors is an integer number (429660).

Almost surely, 2^3992842 is an apocalyptic number.

3992842 is a deficient number, since it is larger than the sum of its proper divisors (2881718).

3992842 is a wasteful number, since it uses less digits than its factorization.

3992842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245.

The product of its digits is 31104, while the sum is 37.

The square root of 3992842 is about 1998.2096987053. The cubic root of 3992842 is about 158.6453601862.

The spelling of 3992842 in words is "three million, nine hundred ninety-two thousand, eight hundred forty-two".