21914104 has 16 divisors (see below), whose sum is σ = 41414400. Its totient is φ = 10870272.

The previous prime is 21914093. The next prime is 21914107. The reversal of 21914104 is 40141912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21914107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9769 + ... + 11800.

It is an arithmetic number, because the mean of its divisors is an integer number (2588400).

Almost surely, 2^21914104 is an apocalyptic number.

It is an amenable number.

21914104 is a deficient number, since it is larger than the sum of its proper divisors (19500296).

21914104 is a wasteful number, since it uses less digits than its factorization.

21914104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21702 (or 21698 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 21914104 is about 4681.2502603471. The cubic root of 21914104 is about 279.8387847461.

The spelling of 21914104 in words is "twenty-one million, nine hundred fourteen thousand, one hundred four".