21268714 has 8 divisors (see below), whose sum is σ = 33582240. Its totient is φ = 10074636.

The previous prime is 21268699. The next prime is 21268727. The reversal of 21268714 is 41786212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279814 + ... + 279889.

It is an arithmetic number, because the mean of its divisors is an integer number (4197780).

Almost surely, 2^21268714 is an apocalyptic number.

21268714 is a deficient number, since it is larger than the sum of its proper divisors (12313526).

21268714 is a wasteful number, since it uses less digits than its factorization.

21268714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559724.

The product of its digits is 5376, while the sum is 31.

The square root of 21268714 is about 4611.8016002426. The cubic root of 21268714 is about 277.0641981296.

The spelling of 21268714 in words is "twenty-one million, two hundred sixty-eight thousand, seven hundred fourteen".