2240044015445 has 4 divisors (see below), whose sum is σ = 2688052818540. Its totient is φ = 1792035212352.

The previous prime is 2240044015441. The next prime is 2240044015487. The reversal of 2240044015445 is 5445104400422.

It is a happy number.

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 1576187344369 + 663856671076 = 1255463^2 + 814774^2 .

It is a cyclic number.

It is not a de Polignac number, because 2240044015445 - 2² = 2240044015441 is a prime.

It is a super-2 number, since 2×2240044015445² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240044015441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224004401540 + ... + 224004401549.

It is an arithmetic number, because the mean of its divisors is an integer number (672013204635).

Almost surely, 2^{2240044015445} is an apocalyptic number.

It is an amenable number.

2240044015445 is a deficient number, since it is larger than the sum of its proper divisors (448008803095).

2240044015445 is an equidigital number, since it uses as much as digits as its factorization.

2240044015445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448008803094.

The product of its (nonzero) digits is 102400, while the sum is 35.

Adding to 2240044015445 its reverse (5445104400422), we get a palindrome (7685148415867).

The spelling of 2240044015445 in words is "two trillion, two hundred forty billion, forty-four million, fifteen thousand, four hundred forty-five".