21326314 has 16 divisors (see below), whose sum is σ = 32921280. Its totient is φ = 10355040.

The previous prime is 21326309. The next prime is 21326351. The reversal of 21326314 is 41362312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22747 + ... + 23665.

It is an arithmetic number, because the mean of its divisors is an integer number (2057580).

Almost surely, 2^21326314 is an apocalyptic number.

21326314 is a deficient number, since it is larger than the sum of its proper divisors (11594966).

21326314 is a wasteful number, since it uses less digits than its factorization.

21326314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245.

The product of its digits is 864, while the sum is 22.

The square root of 21326314 is about 4618.0422258788. The cubic root of 21326314 is about 277.3140880665.

Adding to 21326314 its reverse (41362312), we get a palindrome (62688626).

The spelling of 21326314 in words is "twenty-one million, three hundred twenty-six thousand, three hundred fourteen".