21023314 has 8 divisors (see below), whose sum is σ = 33960780. Its totient is φ = 9703056.

The previous prime is 21023309. The next prime is 21023323. The reversal of 21023314 is 41332012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21022225 + 1089 = 4585^2 + 33^2 .

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, 404269 + ... + 404320.

Almost surely, 2^21023314 is an apocalyptic number.

21023314 is a deficient number, since it is larger than the sum of its proper divisors (12937466).

21023314 is a wasteful number, since it uses less digits than its factorization.

21023314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808604.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 21023314 is about 4585.1187552778. The cubic root of 21023314 is about 275.9944775903.

Adding to 21023314 its reverse (41332012), we get a palindrome (62355326).

The spelling of 21023314 in words is "twenty-one million, twenty-three thousand, three hundred fourteen".