3930392 has 8 divisors (see below), whose sum is σ = 7369500. Its totient is φ = 1965192.

The previous prime is 3930391. The next prime is 3930439. The reversal of 3930392 is 2930393.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3930391) by changing a digit.

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 as a sum of consecutive naturals, namely, 245642 + ... + 245657.

Almost surely, 2^3930392 is an apocalyptic number.

It is an amenable number.

3930392 is a deficient number, since it is larger than the sum of its proper divisors (3439108).

3930392 is a wasteful number, since it uses less digits than its factorization.

3930392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491305 (or 491301 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 29.

The square root of 3930392 is about 1982.5216266160. The cubic root of 3930392 is about 157.8139132704.

Subtracting from 3930392 its reverse (2930393), we obtain a palindrome (999999).

The spelling of 3930392 in words is "three million, nine hundred thirty thousand, three hundred ninety-two".