3925642 has 16 divisors (see below), whose sum is σ = 6887232. Its totient is φ = 1643040.

The previous prime is 3925637. The next prime is 3925667. The reversal of 3925642 is 2465293.

It is a super-2 number, since 2×3925642² = 30821330224328, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2659 + ... + 3862.

It is an arithmetic number, because the mean of its divisors is an integer number (430452).

Almost surely, 2^3925642 is an apocalyptic number.

3925642 is a deficient number, since it is larger than the sum of its proper divisors (2961590).

3925642 is a wasteful number, since it uses less digits than its factorization.

3925642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6573.

The product of its digits is 12960, while the sum is 31.

The square root of 3925642 is about 1981.3232951742. The cubic root of 3925642 is about 157.7503133148.

The spelling of 3925642 in words is "three million, nine hundred twenty-five thousand, six hundred forty-two".