3921242 has 16 divisors (see below), whose sum is σ = 6431712. Its totient is φ = 1782000.

The previous prime is 3921227. The next prime is 3921287. The reversal of 3921242 is 2421293.

It is a super-2 number, since 2×3921242² = 30752277645128, which contains 22 as substring.

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, 617 + ... + 2867.

It is an arithmetic number, because the mean of its divisors is an integer number (401982).

Almost surely, 2^3921242 is an apocalyptic number.

3921242 is a deficient number, since it is larger than the sum of its proper divisors (2510470).

3921242 is a wasteful number, since it uses less digits than its factorization.

3921242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2333.

The product of its digits is 864, while the sum is 23.

The square root of 3921242 is about 1980.2126148472. The cubic root of 3921242 is about 157.6913538831.

The spelling of 3921242 in words is "three million, nine hundred twenty-one thousand, two hundred forty-two".