1442122320 has 80 divisors (see below), whose sum is σ = 4511675520. Its totient is φ = 381030912.

The previous prime is 1442122313. The next prime is 1442122337. The reversal of 1442122320 is 232212441.

It is a tau number, because it is divible by the number of its divisors (80).

It is a zygodrome in base 4.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1404 + ... + 53723.

It is an arithmetic number, because the mean of its divisors is an integer number (56395944).

Almost surely, 2^1442122320 is an apocalyptic number.

1442122320 is a gapful number since it is divisible by the number (10) 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 1442122320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2255837760).

1442122320 is an abundant number, since it is smaller than the sum of its proper divisors (3069553200).

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

1442122320 is a wasteful number, since it uses less digits than its factorization.

1442122320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55252 (or 55246 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1442122320 is about 37975.2856473786. The cubic root of 1442122320 is about 1129.7977344399.

Adding to 1442122320 its reverse (232212441), we get a palindrome (1674334761).

The spelling of 1442122320 in words is "one billion, four hundred forty-two million, one hundred twenty-two thousand, three hundred twenty".