14640022 has 4 divisors (see below), whose sum is σ = 21960036. Its totient is φ = 7320010.

The previous prime is 14639971. The next prime is 14640023. The reversal of 14640022 is 22004641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22004641 = 19 ⋅1158139.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14640023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3660004 + ... + 3660007.

It is an arithmetic number, because the mean of its divisors is an integer number (5490009).

Almost surely, 2^14640022 is an apocalyptic number.

14640022 is a deficient number, since it is larger than the sum of its proper divisors (7320014).

14640022 is an equidigital number, since it uses as much as digits as its factorization.

14640022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7320013.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 14640022 is about 3826.2281688368. The cubic root of 14640022 is about 244.6323626775.

Adding to 14640022 its reverse (22004641), we get a palindrome (36644663).

The spelling of 14640022 in words is "fourteen million, six hundred forty thousand, twenty-two".