1444445469 has 6 divisors (see below), whose sum is σ = 2086421246. Its totient is φ = 962963640.

The previous prime is 1444445467. The next prime is 1444445473. The reversal of 1444445469 is 9645444441.

It is a happy number.

1444445469 is a `hidden beast` number, since 144 + 4 + 4 + 45 + 469 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1360503225 + 83942244 = 36885^2 + 9162^2 .

It is not a de Polignac number, because 1444445469 - 2¹ = 1444445467 is a prime.

It is a super-2 number, since 2×1444445469² = 4172845425829259922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444445467) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80246962 + ... + 80246979.

Almost surely, 2^1444445469 is an apocalyptic number.

It is an amenable number.

1444445469 is a deficient number, since it is larger than the sum of its proper divisors (641975777).

1444445469 is a wasteful number, since it uses less digits than its factorization.

1444445469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160493947 (or 160493944 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 45.

The square root of 1444445469 is about 38005.8609822222. The cubic root of 1444445469 is about 1130.4040816060.

The spelling of 1444445469 in words is "one billion, four hundred forty-four million, four hundred forty-five thousand, four hundred sixty-nine".