3861886238 has 32 divisors (see below), whose sum is σ = 6655993344. Its totient is φ = 1646216352.

The previous prime is 3861886199. The next prime is 3861886261. The reversal of 3861886238 is 8326881683.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3861886238.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3811820 + ... + 3812832.

It is an arithmetic number, because the mean of its divisors is an integer number (207999792).

Almost surely, 2^3861886238 is an apocalyptic number.

3861886238 is a deficient number, since it is larger than the sum of its proper divisors (2794107106).

3861886238 is a wasteful number, since it uses less digits than its factorization.

3861886238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216.

The product of its digits is 2654208, while the sum is 53.

The square root of 3861886238 is about 62144.0764514205. The cubic root of 3861886238 is about 1568.9164820316.

The spelling of 3861886238 in words is "three billion, eight hundred sixty-one million, eight hundred eighty-six thousand, two hundred thirty-eight".