1444093739 has 24 divisors (see below), whose sum is σ = 1642739760. Its totient is φ = 1269338400.

The previous prime is 1444093667. The next prime is 1444093741. The reversal of 1444093739 is 9373904441.

It is not a de Polignac number, because 1444093739 - 2¹² = 1444089643 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1444093739.

It is not an unprimeable number, because it can be changed into a prime (1444093789) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1278527 + ... + 1279655.

It is an arithmetic number, because the mean of its divisors is an integer number (68447490).

Almost surely, 2^1444093739 is an apocalyptic number.

1444093739 is a deficient number, since it is larger than the sum of its proper divisors (198646021).

1444093739 is an equidigital number, since it uses as much as digits as its factorization.

1444093739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224 (or 1171 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 44.

The square root of 1444093739 is about 38001.2333878783. The cubic root of 1444093739 is about 1130.3123210624.

The spelling of 1444093739 in words is "one billion, four hundred forty-four million, ninety-three thousand, seven hundred thirty-nine".