21332414 has 8 divisors (see below), whose sum is σ = 32039280. Its totient is φ = 10652656.

The previous prime is 21332401. The next prime is 21332417. The reversal of 21332414 is 41423312.

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 (21332417) 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, 4679 + ... + 8034.

It is an arithmetic number, because the mean of its divisors is an integer number (4004910).

Almost surely, 2^21332414 is an apocalyptic number.

21332414 is a deficient number, since it is larger than the sum of its proper divisors (10706866).

21332414 is a wasteful number, since it uses less digits than its factorization.

21332414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13554.

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

The square root of 21332414 is about 4618.7026316922. The cubic root of 21332414 is about 277.3405257447.

Adding to 21332414 its reverse (41423312), we get a palindrome (62755726).

The spelling of 21332414 in words is "twenty-one million, three hundred thirty-two thousand, four hundred fourteen".