1144422320 has 80 divisors (see below), whose sum is σ = 2827506528. Its totient is φ = 429281280.

The previous prime is 1144422311. The next prime is 1144422379. The reversal of 1144422320 is 232244411.

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

It is a super-3 number, since 3×1144422320³ (a number of 28 digits) contains 333 as substring.

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, 416150 + ... + 418890.

Almost surely, 2^1144422320 is an apocalyptic number.

1144422320 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 1144422320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1413753264).

1144422320 is an abundant number, since it is smaller than the sum of its proper divisors (1683084208).

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

1144422320 is a wasteful number, since it uses less digits than its factorization.

1144422320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3078 (or 3072 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1144422320 is about 33829.3115507839. The cubic root of 1144422320 is about 1045.9929878994.

Adding to 1144422320 its reverse (232244411), we get a palindrome (1376666731).

The spelling of 1144422320 in words is "one billion, one hundred forty-four million, four hundred twenty-two thousand, three hundred twenty".