42244442052540 has 288 divisors, whose sum is σ = 148715489369664. Its totient is φ = 8880933519360.

The previous prime is 42244442052521. The next prime is 42244442052569. The reversal of 42244442052540 is 4525024444224.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 42244442052492 and 42244442052501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8591820 + ... + 12582060.

It is an arithmetic number, because the mean of its divisors is an integer number (516373226978).

Almost surely, 2^{42244442052540} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42244442052540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74357744684832).

42244442052540 is an abundant number, since it is smaller than the sum of its proper divisors (106471047317124).

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

42244442052540 is a wasteful number, since it uses less digits than its factorization.

42244442052540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3990557 (or 3990548 counting only the distinct ones).

The product of its (nonzero) digits is 1638400, while the sum is 42.

Adding to 42244442052540 its reverse (4525024444224), we get a palindrome (46769466496764).

The spelling of 42244442052540 in words is "forty-two trillion, two hundred forty-four billion, four hundred forty-two million, fifty-two thousand, five hundred forty".