1444272120 has 160 divisors (see below), whose sum is σ = 5065679520. Its totient is φ = 368375040.

The previous prime is 1444272107. The next prime is 1444272139. The reversal of 1444272120 is 212724441.

1444272120 is a `hidden beast` number, since 1 + 4 + 442 + 7 + 212 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 64830 + ... + 84210.

It is an arithmetic number, because the mean of its divisors is an integer number (31660497).

Almost surely, 2^1444272120 is an apocalyptic number.

1444272120 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 1444272120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2532839760).

1444272120 is an abundant number, since it is smaller than the sum of its proper divisors (3621407400).

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

1444272120 is a wasteful number, since it uses less digits than its factorization.

1444272120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19427 (or 19414 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 1444272120 is about 38003.5803576453. The cubic root of 1444272120 is about 1130.3588595789.

Adding to 1444272120 its reverse (212724441), we get a palindrome (1656996561).

The spelling of 1444272120 in words is "one billion, four hundred forty-four million, two hundred seventy-two thousand, one hundred twenty".