1444213445 has 4 divisors (see below), whose sum is σ = 1733056140. Its totient is φ = 1155370752.

The previous prime is 1444213429. The next prime is 1444213451. The reversal of 1444213445 is 5443124441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5443124441 = 4001 ⋅1360441.

It can be written as a sum of positive squares in 2 ways, for example, as 500372161 + 943841284 = 22369^2 + 30722^2 .

It is a cyclic number.

It is not a de Polignac number, because 1444213445 - 2⁴ = 1444213429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144421340 + ... + 144421349.

It is an arithmetic number, because the mean of its divisors is an integer number (433264035).

Almost surely, 2^1444213445 is an apocalyptic number.

It is an amenable number.

1444213445 is a deficient number, since it is larger than the sum of its proper divisors (288842695).

1444213445 is an equidigital number, since it uses as much as digits as its factorization.

1444213445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288842694.

The product of its digits is 30720, while the sum is 32.

The square root of 1444213445 is about 38002.8083830656. The cubic root of 1444213445 is about 1130.3435520517.

Adding to 1444213445 its reverse (5443124441), we get a palindrome (6887337886).

The spelling of 1444213445 in words is "one billion, four hundred forty-four million, two hundred thirteen thousand, four hundred forty-five".