2381745 has 32 divisors (see below), whose sum is σ = 4106880. Its totient is φ = 1175040.

The previous prime is 2381737. The next prime is 2381749. The reversal of 2381745 is 5471832.

2381745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2381745 - 2³ = 2381737 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2381749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17317 + ... + 17453.

It is an arithmetic number, because the mean of its divisors is an integer number (128340).

2^2381745 is an apocalyptic number.

It is an amenable number.

2381745 is a deficient number, since it is larger than the sum of its proper divisors (1725135).

2381745 is a wasteful number, since it uses less digits than its factorization.

2381745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225.

The product of its digits is 6720, while the sum is 30.

The square root of 2381745 is about 1543.2903161752. The cubic root of 2381745 is about 133.5462674010.

The spelling of 2381745 in words is "two million, three hundred eighty-one thousand, seven hundred forty-five".