1444400000 has 192 divisors, whose sum is σ = 3776945760. Its totient is φ = 549120000.

The previous prime is 1444399997. The next prime is 1444400011. The reversal of 1444400000 is 44441.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9199922 + ... + 9200078.

Almost surely, 2^1444400000 is an apocalyptic number.

1444400000 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 1444400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1888472880).

1444400000 is an abundant number, since it is smaller than the sum of its proper divisors (2332545760).

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

1444400000 is an frugal number, since it uses more digits than its factorization.

1444400000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 187 counting only the distinct ones).

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

The square root of 1444400000 is about 38005.2627934606. The cubic root of 1444400000 is about 1130.3922203339.

Adding to 1444400000 its reverse (44441), we get a palindrome (1444444441).

The spelling of 1444400000 in words is "one billion, four hundred forty-four million, four hundred thousand".