1444220000 has 60 divisors (see below), whose sum is σ = 3553047036. Its totient is φ = 577680000.

The previous prime is 1444219969. The next prime is 1444220009. The reversal of 1444220000 is 224441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444220009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 16106 + ... + 56105.

Almost surely, 2^1444220000 is an apocalyptic number.

1444220000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1444220000 is an abundant number, since it is smaller than the sum of its proper divisors (2108827036).

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

1444220000 is an frugal number, since it uses more digits than its factorization.

1444220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72241 (or 72218 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 1444220000 is about 38002.8946265939. The cubic root of 1444220000 is about 1130.3452621846.

Adding to 1444220000 its reverse (224441), we get a palindrome (1444444441).

The spelling of 1444220000 in words is "one billion, four hundred forty-four million, two hundred twenty thousand".