14270321 has 4 divisors (see below), whose sum is σ = 15368052. Its totient is φ = 13172592.

The previous prime is 14270309. The next prime is 14270339. The reversal of 14270321 is 12307241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12307241 = 1609 ⋅7649.

It can be written as a sum of positive squares in 2 ways, for example, as 7639696 + 6630625 = 2764^2 + 2575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14270321 is a prime.

It is a super-2 number, since 2×14270321² = 407284122886082, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 14270293 and 14270302.

It is not an unprimeable number, because it can be changed into a prime (14270351) 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, 548846 + ... + 548871.

It is an arithmetic number, because the mean of its divisors is an integer number (3842013).

Almost surely, 2^14270321 is an apocalyptic number.

It is an amenable number.

14270321 is a deficient number, since it is larger than the sum of its proper divisors (1097731).

14270321 is a wasteful number, since it uses less digits than its factorization.

14270321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097730.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 14270321 is about 3777.6078409491. The cubic root of 14270321 is about 242.5555673844. Note that the first 4 decimals are identical.

Adding to 14270321 its reverse (12307241), we get a palindrome (26577562).

The spelling of 14270321 in words is "fourteen million, two hundred seventy thousand, three hundred twenty-one".