2391345 has 24 divisors (see below), whose sum is σ = 4522752. Its totient is φ = 1159200.

The previous prime is 2391331. The next prime is 2391349. The reversal of 2391345 is 5431932.

2391345 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 2391345 - 2⁶ = 2391281 is a prime.

2391345 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2391349) 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 23 ways as a sum of consecutive naturals, for example, 1921 + ... + 2910.

It is an arithmetic number, because the mean of its divisors is an integer number (188448).

2^2391345 is an apocalyptic number.

It is an amenable number.

2391345 is a deficient number, since it is larger than the sum of its proper divisors (2131407).

2391345 is a wasteful number, since it uses less digits than its factorization.

2391345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4853 (or 4850 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 2391345 is about 1546.3974262783. The cubic root of 2391345 is about 133.7254533228.

The spelling of 2391345 in words is "two million, three hundred ninety-one thousand, three hundred forty-five".