3942431 has 4 divisors (see below), whose sum is σ = 3963264. Its totient is φ = 3921600.

The previous prime is 3942413. The next prime is 3942467. The reversal of 3942431 is 1342493.

3942431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3942431 - 2¹⁴ = 3926047 is a prime.

It is a super-2 number, since 2×3942431² = 31085524379522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3942431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3942401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10130 + ... + 10511.

It is an arithmetic number, because the mean of its divisors is an integer number (990816).

Almost surely, 2^3942431 is an apocalyptic number.

3942431 is a deficient number, since it is larger than the sum of its proper divisors (20833).

3942431 is a wasteful number, since it uses less digits than its factorization.

3942431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20832.

The product of its digits is 2592, while the sum is 26.

The square root of 3942431 is about 1985.5555897532. Note that the first 4 decimals coincide. The cubic root of 3942431 is about 157.9748798391.

The spelling of 3942431 in words is "three million, nine hundred forty-two thousand, four hundred thirty-one".