21614108 has 6 divisors (see below), whose sum is σ = 37824696. Its totient is φ = 10807052.

The previous prime is 21614057. The next prime is 21614141. The reversal of 21614108 is 80141612.

It is a plaindrome in base 11.

It is a zygodrome in base 11.

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, 2701760 + ... + 2701767.

It is an arithmetic number, because the mean of its divisors is an integer number (6304116).

Almost surely, 2^21614108 is an apocalyptic number.

It is an amenable number.

21614108 is a deficient number, since it is larger than the sum of its proper divisors (16210588).

21614108 is a wasteful number, since it uses less digits than its factorization.

21614108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5403531 (or 5403529 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 21614108 is about 4649.0975468364. The cubic root of 21614108 is about 278.5559497238. Note that the first 3 decimals are identical.

The spelling of 21614108 in words is "twenty-one million, six hundred fourteen thousand, one hundred eight".