42044232132440 has 32 divisors (see below), whose sum is σ = 99578444526000. Its totient is φ = 15932551123584.

The previous prime is 42044232132313. The next prime is 42044232132443. The reversal of 42044232132440 is 4423123244024.

It is a self number, because there is not a number n which added to its sum of digits gives 42044232132440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42044232132443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27660678275 + ... + 27660679794.

Almost surely, 2^{42044232132440} is an apocalyptic number.

42044232132440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42044232132440 is an abundant number, since it is smaller than the sum of its proper divisors (57534212393560).

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

42044232132440 is a wasteful number, since it uses less digits than its factorization.

42044232132440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55321358099 (or 55321358095 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 42044232132440 its reverse (4423123244024), we get a palindrome (46467355376464).

The spelling of 42044232132440 in words is "forty-two trillion, forty-four billion, two hundred thirty-two million, one hundred thirty-two thousand, four hundred forty".