1444223400 has 96 divisors (see below), whose sum is σ = 4483641600. Its totient is φ = 384563200.

The previous prime is 1444223393. The next prime is 1444223419. The reversal of 1444223400 is 43224441.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 23 ways as a sum of consecutive naturals, for example, 556105 + ... + 558695.

It is an arithmetic number, because the mean of its divisors is an integer number (46704600).

Almost surely, 2^1444223400 is an apocalyptic number.

1444223400 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 1444223400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2241820800).

1444223400 is an abundant number, since it is smaller than the sum of its proper divisors (3039418200).

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

1444223400 is a wasteful number, since it uses less digits than its factorization.

1444223400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3539 (or 3530 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 1444223400 is about 38002.9393600021. The cubic root of 1444223400 is about 1130.3461492080.

Adding to 1444223400 its reverse (43224441), we get a palindrome (1487447841).

The spelling of 1444223400 in words is "one billion, four hundred forty-four million, two hundred twenty-three thousand, four hundred".