21444314 has 8 divisors (see below), whose sum is σ = 32851008. Its totient is φ = 10493980.

The previous prime is 21444299. The next prime is 21444323. The reversal of 21444314 is 41344412.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 21444314.

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, 113972 + ... + 114159.

It is an arithmetic number, because the mean of its divisors is an integer number (4106376).

Almost surely, 2^21444314 is an apocalyptic number.

21444314 is a deficient number, since it is larger than the sum of its proper divisors (11406694).

21444314 is a wasteful number, since it uses less digits than its factorization.

21444314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228180.

The product of its digits is 1536, while the sum is 23.

The square root of 21444314 is about 4630.8005787337. The cubic root of 21444314 is about 277.8246137677.

Adding to 21444314 its reverse (41344412), we get a palindrome (62788726).

The spelling of 21444314 in words is "twenty-one million, four hundred forty-four thousand, three hundred fourteen".