42044440240 has 160 divisors (see below), whose sum is σ = 109600128000. Its totient is φ = 14867650560.

The previous prime is 42044440231. The next prime is 42044440241. The reversal of 42044440240 is 4204444024.

It is a junction number, because it is equal to n+sod(n) for n = 42044440199 and 42044440208.

It is not an unprimeable number, because it can be changed into a prime (42044440241) 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 31 ways as a sum of consecutive naturals, for example, 9041436 + ... + 9046084.

It is an arithmetic number, because the mean of its divisors is an integer number (685000800).

Almost surely, 2^42044440240 is an apocalyptic number.

42044440240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42044440240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54800064000).

42044440240 is an abundant number, since it is smaller than the sum of its proper divisors (67555687760).

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

42044440240 is a wasteful number, since it uses less digits than its factorization.

42044440240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4955 (or 4949 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 42044440240 its reverse (4204444024), we get a palindrome (46248884264).

It can be divided in two parts, 42044 and 440240, that added together give a palindrome (482284).

The spelling of 42044440240 in words is "forty-two billion, forty-four million, four hundred forty thousand, two hundred forty".