21714022 has 16 divisors (see below), whose sum is σ = 35625744. Its totient is φ = 9844000.

The previous prime is 21714013. The next prime is 21714023. The reversal of 21714022 is 22041712.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21714023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9072 + ... + 11212.

It is an arithmetic number, because the mean of its divisors is an integer number (2226609).

Almost surely, 2^21714022 is an apocalyptic number.

21714022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21714022 is a deficient number, since it is larger than the sum of its proper divisors (13911722).

21714022 is a wasteful number, since it uses less digits than its factorization.

21714022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2615.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 21714022 is about 4659.8306836193. The cubic root of 21714022 is about 278.9845103017.

Adding to 21714022 its reverse (22041712), we get a palindrome (43755734).

The spelling of 21714022 in words is "twenty-one million, seven hundred fourteen thousand, twenty-two".