1442121240444 has 96 divisors (see below), whose sum is σ = 3515686675200. Its totient is φ = 459521717760.

The previous prime is 1442121240389. The next prime is 1442121240487. The reversal of 1442121240444 is 4440421212441.

It is a super-2 number, since 2×1442121240444² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18029299 + ... + 18109109.

It is an arithmetic number, because the mean of its divisors is an integer number (36621736200).

Almost surely, 2^{1442121240444} 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 1442121240444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1757843337600).

1442121240444 is an abundant number, since it is smaller than the sum of its proper divisors (2073565434756).

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

1442121240444 is a wasteful number, since it uses less digits than its factorization.

1442121240444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80363 (or 80361 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 33.

Adding to 1442121240444 its reverse (4440421212441), we get a palindrome (5882542452885).

The spelling of 1442121240444 in words is "one trillion, four hundred forty-two billion, one hundred twenty-one million, two hundred forty thousand, four hundred forty-four".