1244411345 has 4 divisors (see below), whose sum is σ = 1493293620. Its totient is φ = 995529072.

The previous prime is 1244411341. The next prime is 1244411387. The reversal of 1244411345 is 5431144421.

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 356907664 + 887503681 = 18892^2 + 29791^2 .

It is a cyclic number.

It is not a de Polignac number, because 1244411345 - 2² = 1244411341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1244411341) 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, 124441130 + ... + 124441139.

It is an arithmetic number, because the mean of its divisors is an integer number (373323405).

Almost surely, 2^1244411345 is an apocalyptic number.

It is an amenable number.

1244411345 is a deficient number, since it is larger than the sum of its proper divisors (248882275).

1244411345 is an equidigital number, since it uses as much as digits as its factorization.

1244411345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248882274.

The product of its digits is 7680, while the sum is 29.

The square root of 1244411345 is about 35276.2150038804. The cubic root of 1244411345 is about 1075.6095609095.

Adding to 1244411345 its reverse (5431144421), we get a palindrome (6675555766).

The spelling of 1244411345 in words is "one billion, two hundred forty-four million, four hundred eleven thousand, three hundred forty-five".