21334174 has 8 divisors (see below), whose sum is σ = 32284800. Its totient is φ = 10572576.

The previous prime is 21334171. The next prime is 21334189. The reversal of 21334174 is 47143312.

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

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21334171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46974 + ... + 47425.

It is an arithmetic number, because the mean of its divisors is an integer number (4035600).

Almost surely, 2^21334174 is an apocalyptic number.

21334174 is a deficient number, since it is larger than the sum of its proper divisors (10950626).

21334174 is a wasteful number, since it uses less digits than its factorization.

21334174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94514.

The product of its digits is 2016, while the sum is 25.

The square root of 21334174 is about 4618.8931574567. The cubic root of 21334174 is about 277.3481527281.

Adding to 21334174 its reverse (47143312), we get a palindrome (68477486).

The spelling of 21334174 in words is "twenty-one million, three hundred thirty-four thousand, one hundred seventy-four".