2240040013 has 4 divisors (see below), whose sum is σ = 2248756380. Its totient is φ = 2231323648.

The previous prime is 2240039981. The next prime is 2240040059. The reversal of 2240040013 is 3100400422.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1573470889 + 666569124 = 39667^2 + 25818^2 .

It is a cyclic number.

It is not a de Polignac number, because 2240040013 - 2⁵ = 2240039981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240040713) 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, 4357798 + ... + 4358311.

It is an arithmetic number, because the mean of its divisors is an integer number (562189095).

Almost surely, 2^2240040013 is an apocalyptic number.

It is an amenable number.

2240040013 is a deficient number, since it is larger than the sum of its proper divisors (8716367).

2240040013 is an equidigital number, since it uses as much as digits as its factorization.

2240040013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8716366.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2240040013 is about 47329.0609773741. The cubic root of 2240040013 is about 1308.4343148133.

Adding to 2240040013 its reverse (3100400422), we get a palindrome (5340440435).

The spelling of 2240040013 in words is "two billion, two hundred forty million, forty thousand, thirteen".