2381144 has 16 divisors (see below), whose sum is σ = 4659120. Its totient is φ = 1138720.

The previous prime is 2381143. The next prime is 2381147. The reversal of 2381144 is 4411832.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an Ulam number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2381143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6287 + ... + 6654.

It is an arithmetic number, because the mean of its divisors is an integer number (291195).

2^2381144 is an apocalyptic number.

It is an amenable number.

2381144 is a deficient number, since it is larger than the sum of its proper divisors (2277976).

2381144 is a wasteful number, since it uses less digits than its factorization.

2381144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12970 (or 12966 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

The square root of 2381144 is about 1543.0955900397. The cubic root of 2381144 is about 133.5350336125.

Adding to 2381144 its reverse (4411832), we get a palindrome (6792976).

It can be divided in two parts, 238 and 1144, that multiplied together give a palindrome (272272).

The spelling of 2381144 in words is "two million, three hundred eighty-one thousand, one hundred forty-four".