21233414 has 8 divisors (see below), whose sum is σ = 31939920. Its totient is φ = 10586776.

The previous prime is 21233413. The next prime is 21233441. The reversal of 21233414 is 41433212.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21233411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14069 + ... + 15504.

It is an arithmetic number, because the mean of its divisors is an integer number (3992490).

Almost surely, 2^21233414 is an apocalyptic number.

21233414 is a deficient number, since it is larger than the sum of its proper divisors (10706506).

21233414 is a wasteful number, since it uses less digits than its factorization.

21233414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29934.

The product of its digits is 576, while the sum is 20.

The square root of 21233414 is about 4607.9728731840. The cubic root of 21233414 is about 276.9108307302.

Adding to 21233414 its reverse (41433212), we get a palindrome (62666626).

The spelling of 21233414 in words is "twenty-one million, two hundred thirty-three thousand, four hundred fourteen".