14220646 has 12 divisors (see below), whose sum is σ = 23446836. Its totient is φ = 6463820.

The previous prime is 14220631. The next prime is 14220667. The reversal of 14220646 is 64602241.

It is a self number, because there is not a number n which added to its sum of digits gives 14220646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29140 + ... + 29623.

It is an arithmetic number, because the mean of its divisors is an integer number (1953903).

Almost surely, 2^14220646 is an apocalyptic number.

14220646 is a deficient number, since it is larger than the sum of its proper divisors (9226190).

14220646 is a wasteful number, since it uses less digits than its factorization.

14220646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58787 (or 58776 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 14220646 is about 3771.0271810211. The cubic root of 14220646 is about 242.2737947995.

Adding to 14220646 its reverse (64602241), we get a palindrome (78822887).

The spelling of 14220646 in words is "fourteen million, two hundred twenty thousand, six hundred forty-six".