3938942 has 8 divisors (see below), whose sum is σ = 6752496. Its totient is φ = 1688112.

The previous prime is 3938941. The next prime is 3938971. The reversal of 3938942 is 2498393.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 3938896 and 3938905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3938941) 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 in 3 ways as a sum of consecutive naturals, for example, 140663 + ... + 140690.

It is an arithmetic number, because the mean of its divisors is an integer number (844062).

Almost surely, 2^3938942 is an apocalyptic number.

3938942 is a deficient number, since it is larger than the sum of its proper divisors (2813554).

3938942 is a wasteful number, since it uses less digits than its factorization.

3938942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281362.

The product of its digits is 46656, while the sum is 38.

The square root of 3938942 is about 1984.6767998846. The cubic root of 3938942 is about 157.9282641825.

The spelling of 3938942 in words is "three million, nine hundred thirty-eight thousand, nine hundred forty-two".