21414326 has 4 divisors (see below), whose sum is σ = 32121492. Its totient is φ = 10707162.

The previous prime is 21414313. The next prime is 21414361. The reversal of 21414326 is 62341412.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5353580 + ... + 5353583.

It is an arithmetic number, because the mean of its divisors is an integer number (8030373).

Almost surely, 2^21414326 is an apocalyptic number.

21414326 is a deficient number, since it is larger than the sum of its proper divisors (10707166).

21414326 is a wasteful number, since it uses less digits than its factorization.

21414326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10707165.

The product of its digits is 1152, while the sum is 23.

The square root of 21414326 is about 4627.5615609087. The cubic root of 21414326 is about 277.6950488690.

Adding to 21414326 its reverse (62341412), we get a palindrome (83755738).

The spelling of 21414326 in words is "twenty-one million, four hundred fourteen thousand, three hundred twenty-six".