42144244140 has 48 divisors (see below), whose sum is σ = 118865248992. Its totient is φ = 11156430336.

The previous prime is 42144244133. The next prime is 42144244141. The reversal of 42144244140 is 4144244124.

It is a super-2 number, since 2×42144244140² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 42144244098 and 42144244107.

It is not an unprimeable number, because it can be changed into a prime (42144244141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2555299 + ... + 2571738.

It is an arithmetic number, because the mean of its divisors is an integer number (2476359354).

Almost surely, 2^42144244140 is an apocalyptic number.

It is an amenable number.

42144244140 is an abundant number, since it is smaller than the sum of its proper divisors (76721004852).

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

42144244140 is a wasteful number, since it uses less digits than its factorization.

42144244140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5127186 (or 5127184 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 30.

Adding to 42144244140 its reverse (4144244124), we get a palindrome (46288488264).

The spelling of 42144244140 in words is "forty-two billion, one hundred forty-four million, two hundred forty-four thousand, one hundred forty".