1444741440 has 112 divisors (see below), whose sum is σ = 4601333952. Its totient is φ = 384065536.

The previous prime is 1444741433. The next prime is 1444741489. The reversal of 1444741440 is 441474441.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330952 + ... + 335288.

Almost surely, 2^1444741440 is an apocalyptic number.

1444741440 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 1444741440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2300666976).

1444741440 is an abundant number, since it is smaller than the sum of its proper divisors (3156592512).

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

1444741440 is a wasteful number, since it uses less digits than its factorization.

1444741440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4704 (or 4694 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 33.

The square root of 1444741440 is about 38009.7545374868. The cubic root of 1444741440 is about 1130.4812840077.

The spelling of 1444741440 in words is "one billion, four hundred forty-four million, seven hundred forty-one thousand, four hundred forty".