1444250000 has 140 divisors (see below), whose sum is σ = 3596438340. Its totient is φ = 561600000.

The previous prime is 1444249999. The next prime is 1444250029. The reversal of 1444250000 is 524441.

It can be written as a sum of positive squares in 14 ways, for example, as 1381460224 + 62789776 = 37168^2 + 7924^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

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 27 ways as a sum of consecutive naturals, for example, 13249946 + ... + 13250054.

Almost surely, 2^1444250000 is an apocalyptic number.

1444250000 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 1444250000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1798219170).

1444250000 is an abundant number, since it is smaller than the sum of its proper divisors (2152188340).

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

1444250000 is an frugal number, since it uses more digits than its factorization.

1444250000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 1444250000 is about 38003.2893313197. The cubic root of 1444250000 is about 1130.3530888138.

Adding to 1444250000 its reverse (524441), we get a palindrome (1444774441).

It can be divided in two parts, 1444 and 250000, that multiplied together give a square (361000000 = 19000²).

The spelling of 1444250000 in words is "one billion, four hundred forty-four million, two hundred fifty thousand".