2381855 has 8 divisors (see below), whose sum is σ = 3266592. Its totient is φ = 1633248.

The previous prime is 2381849. The next prime is 2381861. The reversal of 2381855 is 5581832.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2381849) and next prime (2381861).

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

It is a cyclic number.

It is not a de Polignac number, because 2381855 - 2⁴ = 2381839 is a prime.

It is a congruent number.

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, 33992 + ... + 34061.

It is an arithmetic number, because the mean of its divisors is an integer number (408324).

2^2381855 is an apocalyptic number.

2381855 is a deficient number, since it is larger than the sum of its proper divisors (884737).

2381855 is an equidigital number, since it uses as much as digits as its factorization.

2381855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68065.

The product of its digits is 9600, while the sum is 32.

The square root of 2381855 is about 1543.3259539060. The cubic root of 2381855 is about 133.5483232974.

The spelling of 2381855 in words is "two million, three hundred eighty-one thousand, eight hundred fifty-five".