3856138 has 32 divisors (see below), whose sum is σ = 6914880. Its totient is φ = 1589760.

The previous prime is 3856133. The next prime is 3856141. The reversal of 3856138 is 8316583.

It is a happy number.

It is a d-powerful number, because it can be written as 3⁹ + 8³ + 5³ + 6⁸ + 1 + 3¹⁰ + 8⁷ .

It is not an unprimeable number, because it can be changed into a prime (3856133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27673 + ... + 27811.

It is an arithmetic number, because the mean of its divisors is an integer number (216090).

Almost surely, 2^3856138 is an apocalyptic number.

3856138 is a deficient number, since it is larger than the sum of its proper divisors (3058742).

3856138 is a wasteful number, since it uses less digits than its factorization.

3856138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262.

The product of its digits is 17280, while the sum is 34.

The square root of 3856138 is about 1963.7051713534. The cubic root of 3856138 is about 156.8137675767.

The spelling of 3856138 in words is "three million, eight hundred fifty-six thousand, one hundred thirty-eight".