1444013769 has 8 divisors (see below), whose sum is σ = 2100383712. Its totient is φ = 875159840.

The previous prime is 1444013729. The next prime is 1444013783. The reversal of 1444013769 is 9673104441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1444013769 - 2¹¹ = 1444011721 is a prime.

It is a super-2 number, since 2×1444013769² = 4170351530123170722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1444013719) 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, 21878964 + ... + 21879029.

It is an arithmetic number, because the mean of its divisors is an integer number (262547964).

Almost surely, 2^1444013769 is an apocalyptic number.

It is an amenable number.

1444013769 is a deficient number, since it is larger than the sum of its proper divisors (656369943).

1444013769 is a wasteful number, since it uses less digits than its factorization.

1444013769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43758007.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 1444013769 is about 38000.1811706208. The cubic root of 1444013769 is about 1130.2914561323.

The spelling of 1444013769 in words is "one billion, four hundred forty-four million, thirteen thousand, seven hundred sixty-nine".