44120040253 has 4 divisors (see below), whose sum is σ = 44121347388. Its totient is φ = 44118733120.

The previous prime is 44120040229. The next prime is 44120040299. The reversal of 44120040253 is 35204002144.

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 17118320569 + 27001719684 = 130837^2 + 164322^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44120040253 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 (44100040253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601558 + ... + 670903.

It is an arithmetic number, because the mean of its divisors is an integer number (11030336847).

Almost surely, 2^44120040253 is an apocalyptic number.

It is an amenable number.

44120040253 is a deficient number, since it is larger than the sum of its proper divisors (1307135).

44120040253 is a wasteful number, since it uses less digits than its factorization.

44120040253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307134.

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 44120040253 its reverse (35204002144), we get a palindrome (79324042397).

The spelling of 44120040253 in words is "forty-four billion, one hundred twenty million, forty thousand, two hundred fifty-three".