21367214 has 8 divisors (see below), whose sum is σ = 34964568. Its totient is φ = 9712360.

The previous prime is 21367201. The next prime is 21367217. The reversal of 21367214 is 41276312.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21367217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485597 + ... + 485640.

It is an arithmetic number, because the mean of its divisors is an integer number (4370571).

Almost surely, 2^21367214 is an apocalyptic number.

21367214 is a deficient number, since it is larger than the sum of its proper divisors (13597354).

21367214 is a wasteful number, since it uses less digits than its factorization.

21367214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971250.

The product of its digits is 2016, while the sum is 26.

The square root of 21367214 is about 4622.4683882099. The cubic root of 21367214 is about 277.4912542221.

The spelling of 21367214 in words is "twenty-one million, three hundred sixty-seven thousand, two hundred fourteen".