3974138 has 16 divisors (see below), whose sum is σ = 7033344. Its totient is φ = 1648080.

The previous prime is 3974129. The next prime is 3974143. The reversal of 3974138 is 8314793.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 3974098 and 3974107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4145 + ... + 5012.

It is an arithmetic number, because the mean of its divisors is an integer number (439584).

Almost surely, 2^3974138 is an apocalyptic number.

3974138 is a deficient number, since it is larger than the sum of its proper divisors (3059206).

3974138 is a wasteful number, since it uses less digits than its factorization.

3974138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9197.

The product of its digits is 18144, while the sum is 35.

The square root of 3974138 is about 1993.5240154059. The cubic root of 3974138 is about 158.3972538466.

The spelling of 3974138 in words is "three million, nine hundred seventy-four thousand, one hundred thirty-eight".