21326882 has 16 divisors (see below), whose sum is σ = 33359040. Its totient is φ = 10216752.

The previous prime is 21326863. The next prime is 21326897. The reversal of 21326882 is 28862312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2219 + ... + 6897.

It is an arithmetic number, because the mean of its divisors is an integer number (2084940).

Almost surely, 2^21326882 is an apocalyptic number.

21326882 is a deficient number, since it is larger than the sum of its proper divisors (12032158).

21326882 is a wasteful number, since it uses less digits than its factorization.

21326882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4777.

The product of its digits is 9216, while the sum is 32.

The square root of 21326882 is about 4618.1037233912. The cubic root of 21326882 is about 277.3165500173.

The spelling of 21326882 in words is "twenty-one million, three hundred twenty-six thousand, eight hundred eighty-two".