1424144441 has 4 divisors (see below), whose sum is σ = 1473252900. Its totient is φ = 1375035984.

The previous prime is 1424144431. The next prime is 1424144443. The reversal of 1424144441 is 1444414241.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 302899216 + 1121245225 = 17404^2 + 33485^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1424144441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 49108429 = 1424144441 / (1 + 4 + 2 + 4 + 1 + 4 + 4 + 4 + 4 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1424144443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24554186 + ... + 24554243.

It is an arithmetic number, because the mean of its divisors is an integer number (368313225).

Almost surely, 2^1424144441 is an apocalyptic number.

It is an amenable number.

1424144441 is a deficient number, since it is larger than the sum of its proper divisors (49108459).

1424144441 is an equidigital number, since it uses as much as digits as its factorization.

1424144441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49108458.

The product of its digits is 8192, while the sum is 29.

The square root of 1424144441 is about 37737.8383191194. The cubic root of 1424144441 is about 1125.0833033952.

Adding to 1424144441 its reverse (1444414241), we get a palindrome (2868558682).

The spelling of 1424144441 in words is "one billion, four hundred twenty-four million, one hundred forty-four thousand, four hundred forty-one".