2240404013 has 4 divisors (see below), whose sum is σ = 2245201920. Its totient is φ = 2235606108.

The previous prime is 2240404009. The next prime is 2240404021. The reversal of 2240404013 is 3104040422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2240404013 - 2² = 2240404009 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 (2240404003) 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, 2398253 + ... + 2399186.

It is an arithmetic number, because the mean of its divisors is an integer number (561300480).

Almost surely, 2^2240404013 is an apocalyptic number.

It is an amenable number.

2240404013 is a deficient number, since it is larger than the sum of its proper divisors (4797907).

2240404013 is an equidigital number, since it uses as much as digits as its factorization.

2240404013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4797906.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2240404013 is about 47332.9062386835. The cubic root of 2240404013 is about 1308.5051832342.

Adding to 2240404013 its reverse (3104040422), we get a palindrome (5344444435).

The spelling of 2240404013 in words is "two billion, two hundred forty million, four hundred four thousand, thirteen".