14389509 has 8 divisors (see below), whose sum is σ = 19210240. Its totient is φ = 9580896.

The previous prime is 14389489. The next prime is 14389537. The reversal of 14389509 is 90598341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 14389509 - 2¹⁶ = 14323973 is a prime.

It is a super-2 number, since 2×14389509² = 414115938522162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14389589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252 + ... + 5370.

It is an arithmetic number, because the mean of its divisors is an integer number (2401280).

Almost surely, 2^14389509 is an apocalyptic number.

It is an amenable number.

14389509 is a deficient number, since it is larger than the sum of its proper divisors (4820731).

14389509 is an equidigital number, since it uses as much as digits as its factorization.

14389509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6059.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 14389509 is about 3793.3506297204. The cubic root of 14389509 is about 243.2289836349.

The spelling of 14389509 in words is "fourteen million, three hundred eighty-nine thousand, five hundred nine".