1443222120 has 128 divisors (see below), whose sum is σ = 4501008000. Its totient is φ = 369761280.

The previous prime is 1443222103. The next prime is 1443222133. The reversal of 1443222120 is 212223441.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 796015 + ... + 797825.

It is an arithmetic number, because the mean of its divisors is an integer number (35164125).

Almost surely, 2^1443222120 is an apocalyptic number.

1443222120 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 1443222120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2250504000).

1443222120 is an abundant number, since it is smaller than the sum of its proper divisors (3057785880).

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

1443222120 is a wasteful number, since it uses less digits than its factorization.

1443222120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2083 (or 2079 counting only the distinct ones).

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

The square root of 1443222120 is about 37989.7633580416. The cubic root of 1443222120 is about 1130.0848658428.

Adding to 1443222120 its reverse (212223441), we get a palindrome (1655445561).

The spelling of 1443222120 in words is "one billion, four hundred forty-three million, two hundred twenty-two thousand, one hundred twenty".