21744314 has 16 divisors (see below), whose sum is σ = 33283008. Its totient is φ = 10651872.

The previous prime is 21744293. The next prime is 21744323. The reversal of 21744314 is 41344712.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34934 + ... + 35550.

It is an arithmetic number, because the mean of its divisors is an integer number (2080188).

Almost surely, 2^21744314 is an apocalyptic number.

21744314 is a deficient number, since it is larger than the sum of its proper divisors (11538694).

21744314 is a wasteful number, since it uses less digits than its factorization.

21744314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949.

The product of its digits is 2688, while the sum is 26.

The square root of 21744314 is about 4663.0798835105. The cubic root of 21744314 is about 279.1141818413.

The spelling of 21744314 in words is "twenty-one million, seven hundred forty-four thousand, three hundred fourteen".