14220518 has 8 divisors (see below), whose sum is σ = 22971648. Its totient is φ = 6563304.

The previous prime is 14220439. The next prime is 14220533. The reversal of 14220518 is 81502241.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 14220493 and 14220502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273446 + ... + 273497.

It is an arithmetic number, because the mean of its divisors is an integer number (2871456).

Almost surely, 2^14220518 is an apocalyptic number.

14220518 is a deficient number, since it is larger than the sum of its proper divisors (8751130).

14220518 is a wasteful number, since it uses less digits than its factorization.

14220518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546958.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 14220518 is about 3771.0102094797. The cubic root of 14220518 is about 242.2730678953.

Adding to 14220518 its reverse (81502241), we get a palindrome (95722759).

The spelling of 14220518 in words is "fourteen million, two hundred twenty thousand, five hundred eighteen".