1444220433 has 12 divisors (see below), whose sum is σ = 2086426368. Its totient is φ = 962661240.

The previous prime is 1444220423. The next prime is 1444220441. The reversal of 1444220433 is 3340224441.

It is a happy number.

1444220433 is a `hidden beast` number, since 1 + 4 + 4 + 4 + 220 + 433 = 666.

It is not a de Polignac number, because 1444220433 - 2⁴ = 1444220417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1444220397 and 1444220406.

It is not an unprimeable number, because it can be changed into a prime (1444220413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99468 + ... + 113058.

It is an arithmetic number, because the mean of its divisors is an integer number (173868864).

Almost surely, 2^1444220433 is an apocalyptic number.

It is an amenable number.

1444220433 is a deficient number, since it is larger than the sum of its proper divisors (642205935).

1444220433 is a wasteful number, since it uses less digits than its factorization.

1444220433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25404 (or 25401 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 1444220433 is about 38002.9003235279. The cubic root of 1444220433 is about 1130.3453751497.

Adding to 1444220433 its reverse (3340224441), we get a palindrome (4784444874).

The spelling of 1444220433 in words is "one billion, four hundred forty-four million, two hundred twenty thousand, four hundred thirty-three".