44142432440 has 32 divisors (see below), whose sum is σ = 99454214880. Its totient is φ = 17633196672.

The previous prime is 44142432419. The next prime is 44142432449. The reversal of 44142432440 is 4423424144.

It is a junction number, because it is equal to n+sod(n) for n = 44142432397 and 44142432406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44142432449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 712919 + ... + 772358.

It is an arithmetic number, because the mean of its divisors is an integer number (3107944215).

Almost surely, 2^44142432440 is an apocalyptic number.

44142432440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44142432440 is an abundant number, since it is smaller than the sum of its proper divisors (55311782440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

44142432440 is a wasteful number, since it uses less digits than its factorization.

44142432440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1486031 (or 1486027 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 44142432440 its reverse (4423424144), we get a palindrome (48565856584).

The spelling of 44142432440 in words is "forty-four billion, one hundred forty-two million, four hundred thirty-two thousand, four hundred forty".