21714366 has 32 divisors (see below), whose sum is σ = 44323200. Its totient is φ = 7090976.

The previous prime is 21714337. The next prime is 21714367. The reversal of 21714366 is 66341712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21714367) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95545 + ... + 95771.

It is an arithmetic number, because the mean of its divisors is an integer number (1385100).

Almost surely, 2^21714366 is an apocalyptic number.

21714366 is an abundant number, since it is smaller than the sum of its proper divisors (22608834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21714366 is a wasteful number, since it uses less digits than its factorization.

21714366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488.

The product of its digits is 6048, while the sum is 30.

The square root of 21714366 is about 4659.8675946855. The cubic root of 21714366 is about 278.9859835458.

The spelling of 21714366 in words is "twenty-one million, seven hundred fourteen thousand, three hundred sixty-six".