1444943860 has 24 divisors (see below), whose sum is σ = 3035508840. Its totient is φ = 577762944.

The previous prime is 1444943839. The next prime is 1444943861. The reversal of 1444943860 is 683494441.

It can be written as a sum of positive squares in 4 ways, for example, as 158860816 + 1286083044 = 12604^2 + 35862^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444943861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48846 + ... + 72634.

It is an arithmetic number, because the mean of its divisors is an integer number (126479535).

Almost surely, 2^1444943860 is an apocalyptic number.

1444943860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1444943860 is an abundant number, since it is smaller than the sum of its proper divisors (1590564980).

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

1444943860 is a wasteful number, since it uses less digits than its factorization.

1444943860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26835 (or 26833 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 43.

The square root of 1444943860 is about 38012.4171817579. The cubic root of 1444943860 is about 1130.5340780761.

The spelling of 1444943860 in words is "one billion, four hundred forty-four million, nine hundred forty-three thousand, eight hundred sixty".