21414333 has 8 divisors (see below), whose sum is σ = 28761408. Its totient is φ = 14171744.

The previous prime is 21414313. The next prime is 21414361. The reversal of 21414333 is 33341412.

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

It is a cyclic number.

It is not a de Polignac number, because 21414333 - 2⁶ = 21414269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21414313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25641 + ... + 26462.

It is an arithmetic number, because the mean of its divisors is an integer number (3595176).

Almost surely, 2^21414333 is an apocalyptic number.

It is an amenable number.

21414333 is a deficient number, since it is larger than the sum of its proper divisors (7347075).

21414333 is a wasteful number, since it uses less digits than its factorization.

21414333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52243.

The product of its digits is 864, while the sum is 21.

The square root of 21414333 is about 4627.5623172465. The cubic root of 21414333 is about 277.6950791270.

Adding to 21414333 its reverse (33341412), we get a palindrome (54755745).

The spelling of 21414333 in words is "twenty-one million, four hundred fourteen thousand, three hundred thirty-three".