2381842 has 8 divisors (see below), whose sum is σ = 3600432. Its totient is φ = 1181700.

The previous prime is 2381839. The next prime is 2381849. The reversal of 2381842 is 2481832.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2381842.

It is not an unprimeable number, because it can be changed into a prime (2381849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4284 + ... + 4807.

It is an arithmetic number, because the mean of its divisors is an integer number (450054).

2^2381842 is an apocalyptic number.

2381842 is a deficient number, since it is larger than the sum of its proper divisors (1218590).

2381842 is a wasteful number, since it uses less digits than its factorization.

2381842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9224.

The product of its digits is 3072, while the sum is 28.

The square root of 2381842 is about 1543.3217422171. The cubic root of 2381842 is about 133.5480803312.

It can be divided in two parts, 2381 and 842, that added together give a palindrome (3223).

The spelling of 2381842 in words is "two million, three hundred eighty-one thousand, eight hundred forty-two".