42244865140 has 12 divisors (see below), whose sum is σ = 88714216836. Its totient is φ = 16897946048.

The previous prime is 42244865129. The next prime is 42244865149. The reversal of 42244865140 is 4156844224.

It can be written as a sum of positive squares in 2 ways, for example, as 18737229456 + 23507635684 = 136884^2 + 153322^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42244865093 and 42244865102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42244865149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1056121609 + ... + 1056121648.

It is an arithmetic number, because the mean of its divisors is an integer number (7392851403).

Almost surely, 2^42244865140 is an apocalyptic number.

It is an amenable number.

42244865140 is an abundant number, since it is smaller than the sum of its proper divisors (46469351696).

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

42244865140 is a wasteful number, since it uses less digits than its factorization.

42244865140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112243266 (or 2112243264 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 40.

The spelling of 42244865140 in words is "forty-two billion, two hundred forty-four million, eight hundred sixty-five thousand, one hundred forty".