3942393 has 24 divisors (see below), whose sum is σ = 6588288. Its totient is φ = 2078496.

The previous prime is 3942383. The next prime is 3942397. The reversal of 3942393 is 3932493.

It is not a de Polignac number, because 3942393 - 2⁴ = 3942377 is a prime.

3942393 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3942397) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 880 + ... + 2942.

It is an arithmetic number, because the mean of its divisors is an integer number (274512).

Almost surely, 2^3942393 is an apocalyptic number.

It is an amenable number.

3942393 is a deficient number, since it is larger than the sum of its proper divisors (2645895).

3942393 is a wasteful number, since it uses less digits than its factorization.

3942393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2093 (or 2086 counting only the distinct ones).

The product of its digits is 17496, while the sum is 33.

The square root of 3942393 is about 1985.5460206200. The cubic root of 3942393 is about 157.9743722788.

The spelling of 3942393 in words is "three million, nine hundred forty-two thousand, three hundred ninety-three".