1144460447 has 4 divisors (see below), whose sum is σ = 1232495880. Its totient is φ = 1056425016.

The previous prime is 1144460419. The next prime is 1144460477. The reversal of 1144460447 is 7440644411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7440644411 = 359 ⋅20726029.

It is a cyclic number.

It is not a de Polignac number, because 1144460447 - 2¹⁰ = 1144459423 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 (1144460477) 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, 44017697 + ... + 44017722.

It is an arithmetic number, because the mean of its divisors is an integer number (308123970).

Almost surely, 2^1144460447 is an apocalyptic number.

1144460447 is a deficient number, since it is larger than the sum of its proper divisors (88035433).

1144460447 is an equidigital number, since it uses as much as digits as its factorization.

1144460447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88035432.

The product of its (nonzero) digits is 43008, while the sum is 35.

The square root of 1144460447 is about 33829.8750662783. The cubic root of 1144460447 is about 1046.0046036963.

The spelling of 1144460447 in words is "one billion, one hundred forty-four million, four hundred sixty thousand, four hundred forty-seven".