21616096 has 24 divisors (see below), whose sum is σ = 42694344. Its totient is φ = 10773120.

The previous prime is 21616079. The next prime is 21616123. The reversal of 21616096 is 69061612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11031 + ... + 12841.

It is an arithmetic number, because the mean of its divisors is an integer number (1778931).

Almost surely, 2^21616096 is an apocalyptic number.

It is an amenable number.

21616096 is a deficient number, since it is larger than the sum of its proper divisors (21078248).

21616096 is a wasteful number, since it uses less digits than its factorization.

21616096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2194 (or 2186 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 21616096 is about 4649.3113468556. The cubic root of 21616096 is about 278.5644897054.

The spelling of 21616096 in words is "twenty-one million, six hundred sixteen thousand, ninety-six".