14448991 has 4 divisors (see below), whose sum is σ = 15077232. Its totient is φ = 13820752.

The previous prime is 14448953. The next prime is 14449013. The reversal of 14448991 is 19984441.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14448991 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 (14448491) 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, 314086 + ... + 314131.

It is an arithmetic number, because the mean of its divisors is an integer number (3769308).

Almost surely, 2^14448991 is an apocalyptic number.

14448991 is a deficient number, since it is larger than the sum of its proper divisors (628241).

14448991 is an equidigital number, since it uses as much as digits as its factorization.

14448991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628240.

The product of its digits is 41472, while the sum is 40.

The square root of 14448991 is about 3801.1828422216. The cubic root of 14448991 is about 243.5636685993.

The spelling of 14448991 in words is "fourteen million, four hundred forty-eight thousand, nine hundred ninety-one".