4000381886 has 4 divisors (see below), whose sum is σ = 6000572832. Its totient is φ = 2000190942.

The previous prime is 4000381883. The next prime is 4000381909. The reversal of 4000381886 is 6881830004.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000381883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000095470 + ... + 1000095473.

It is an arithmetic number, because the mean of its divisors is an integer number (1500143208).

Almost surely, 2^4000381886 is an apocalyptic number.

4000381886 is a deficient number, since it is larger than the sum of its proper divisors (2000190946).

4000381886 is a wasteful number, since it uses less digits than its factorization.

4000381886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000190945.

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 4000381886 is about 63248.5722052285. The cubic root of 4000381886 is about 1587.4515675471.

The spelling of 4000381886 in words is "four billion, three hundred eighty-one thousand, eight hundred eighty-six".