3938392 has 8 divisors (see below), whose sum is σ = 7384500. Its totient is φ = 1969192.

The previous prime is 3938383. The next prime is 3938393. The reversal of 3938392 is 2938393.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3938393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246142 + ... + 246157.

Almost surely, 2^3938392 is an apocalyptic number.

It is an amenable number.

3938392 is a deficient number, since it is larger than the sum of its proper divisors (3446108).

3938392 is a wasteful number, since it uses less digits than its factorization.

3938392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492305 (or 492301 counting only the distinct ones).

The product of its digits is 34992, while the sum is 37.

The square root of 3938392 is about 1984.5382334437. The cubic root of 3938392 is about 157.9209132586.

Subtracting from 3938392 its reverse (2938393), we obtain a palindrome (999999).

The spelling of 3938392 in words is "three million, nine hundred thirty-eight thousand, three hundred ninety-two".