44045142431 has 4 divisors (see below), whose sum is σ = 44069764200. Its totient is φ = 44020520664.

The previous prime is 44045142413. The next prime is 44045142433. The reversal of 44045142431 is 13424154044.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44045142431 is a prime.

It is a super-2 number, since 2×44045142431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44045142433) 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, 12308201 + ... + 12311778.

It is an arithmetic number, because the mean of its divisors is an integer number (11017441050).

Almost surely, 2^44045142431 is an apocalyptic number.

44045142431 is a deficient number, since it is larger than the sum of its proper divisors (24621769).

44045142431 is a wasteful number, since it uses less digits than its factorization.

44045142431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24621768.

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 44045142431 its reverse (13424154044), we get a palindrome (57469296475).

The spelling of 44045142431 in words is "forty-four billion, forty-five million, one hundred forty-two thousand, four hundred thirty-one".