1244401423 has 4 divisors (see below), whose sum is σ = 1244520160. Its totient is φ = 1244282688.

The previous prime is 1244401387. The next prime is 1244401429. The reversal of 1244401423 is 3241044421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3241044421 = 499 ⋅6495079.

It is a cyclic number.

It is not a de Polignac number, because 1244401423 - 2²⁹ = 707530511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244401429) 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, 41943 + ... + 65176.

It is an arithmetic number, because the mean of its divisors is an integer number (311130040).

Almost surely, 2^1244401423 is an apocalyptic number.

1244401423 is a deficient number, since it is larger than the sum of its proper divisors (118737).

1244401423 is a wasteful number, since it uses less digits than its factorization.

1244401423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118736.

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

The square root of 1244401423 is about 35276.0743705986. The cubic root of 1244401423 is about 1075.6067022013.

Adding to 1244401423 its reverse (3241044421), we get a palindrome (4485445844).

The spelling of 1244401423 in words is "one billion, two hundred forty-four million, four hundred one thousand, four hundred twenty-three".