1244412403 has 6 divisors (see below), whose sum is σ = 1347500004. Its totient is φ = 1148688216.

The previous prime is 1244412349. The next prime is 1244412413. The reversal of 1244412403 is 3042144421.

It is not a de Polignac number, because 1244412403 - 2⁹ = 1244411891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1244412413) 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, 3681525 + ... + 3681862.

It is an arithmetic number, because the mean of its divisors is an integer number (224583334).

Almost surely, 2^1244412403 is an apocalyptic number.

1244412403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1244412403 is a deficient number, since it is larger than the sum of its proper divisors (103087601).

1244412403 is an equidigital number, since it uses as much as digits as its factorization.

1244412403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7363413 (or 7363400 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 1244412403 is about 35276.2299998172. The cubic root of 1244412403 is about 1075.6098657375.

Adding to 1244412403 its reverse (3042144421), we get a palindrome (4286556824).

The spelling of 1244412403 in words is "one billion, two hundred forty-four million, four hundred twelve thousand, four hundred three".