2040344563 has 4 divisors (see below), whose sum is σ = 2050701840. Its totient is φ = 2029987288.

The previous prime is 2040344497. The next prime is 2040344599. The reversal of 2040344563 is 3654430402.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2040344563 - 2¹⁷ = 2040213491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2040345563) 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, 5178343 + ... + 5178736.

It is an arithmetic number, because the mean of its divisors is an integer number (512675460).

Almost surely, 2^2040344563 is an apocalyptic number.

2040344563 is a deficient number, since it is larger than the sum of its proper divisors (10357277).

2040344563 is a wasteful number, since it uses less digits than its factorization.

2040344563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10357276.

The product of its (nonzero) digits is 34560, while the sum is 31.

The square root of 2040344563 is about 45170.1733780157. The cubic root of 2040344563 is about 1268.3365418353.

Adding to 2040344563 its reverse (3654430402), we get a palindrome (5694774965).

The spelling of 2040344563 in words is "two billion, forty million, three hundred forty-four thousand, five hundred sixty-three".