14220522 has 40 divisors (see below), whose sum is σ = 32656932. Its totient is φ = 4622400.

The previous prime is 14220439. The next prime is 14220533. The reversal of 14220522 is 22502241.

14220522 is a `hidden beast` number, since 142 + 2 + 0 + 522 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14220441 + 81 = 3771^2 + 9^2 .

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 14220495 and 14220504.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5572 + ... + 7712.

Almost surely, 2^14220522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14220522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16328466).

14220522 is an abundant number, since it is smaller than the sum of its proper divisors (18436410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14220522 is a wasteful number, since it uses less digits than its factorization.

14220522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2196 (or 2187 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 14220522 is about 3771.0107398415. The cubic root of 14220522 is about 242.2730906112.

Adding to 14220522 its reverse (22502241), we get a palindrome (36722763).

The spelling of 14220522 in words is "fourteen million, two hundred twenty thousand, five hundred twenty-two".