2040345 has 12 divisors (see below), whose sum is σ = 3536676. Its totient is φ = 1088160.

The previous prime is 2040331. The next prime is 2040361. The reversal of 2040345 is 5430402.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 242064 + 1798281 = 492^2 + 1341^2 .

It is not a de Polignac number, because 2040345 - 2⁶ = 2040281 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22626 + ... + 22715.

It is an arithmetic number, because the mean of its divisors is an integer number (294723).

2^2040345 is an apocalyptic number.

It is an amenable number.

2040345 is a deficient number, since it is larger than the sum of its proper divisors (1496331).

2040345 is a wasteful number, since it uses less digits than its factorization.

2040345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45352 (or 45349 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 2040345 is about 1428.4064547600. The cubic root of 2040345 is about 126.8336632386.

Adding to 2040345 its reverse (5430402), we get a palindrome (7470747).

The spelling of 2040345 in words is "two million, forty thousand, three hundred forty-five".