2240444421997 has 4 divisors (see below), whose sum is σ = 2246031565596. Its totient is φ = 2234857278400.

The previous prime is 2240444421913. The next prime is 2240444422019. The reversal of 2240444421997 is 7991244440422.

2240444421997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1947618416041 + 292826005956 = 1395571^2 + 541134^2 .

It is a cyclic number.

It is not a de Polignac number, because 2240444421997 - 2⁷ = 2240444421869 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 (2240444451997) 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, 2793571198 + ... + 2793571999.

It is an arithmetic number, because the mean of its divisors is an integer number (561507891399).

Almost surely, 2^{2240444421997} is an apocalyptic number.

It is an amenable number.

2240444421997 is a deficient number, since it is larger than the sum of its proper divisors (5587143599).

2240444421997 is an equidigital number, since it uses as much as digits as its factorization.

2240444421997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5587143598.

The product of its (nonzero) digits is 4644864, while the sum is 52.

The spelling of 2240444421997 in words is "two trillion, two hundred forty billion, four hundred forty-four million, four hundred twenty-one thousand, nine hundred ninety-seven".