21327852 has 48 divisors (see below), whose sum is σ = 61252352. Its totient is φ = 5624640.

The previous prime is 21327841. The next prime is 21327853. The reversal of 21327852 is 25872312.

21327852 is nontrivially palindromic in base 5.

It is not an unprimeable number, because it can be changed into a prime (21327853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8674 + ... + 10857.

Almost surely, 2^21327852 is an apocalyptic number.

It is an amenable number.

21327852 is an abundant number, since it is smaller than the sum of its proper divisors (39924500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21327852 is a wasteful number, since it uses less digits than its factorization.

21327852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19558 (or 19556 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 21327852 is about 4618.2087436581. The cubic root of 21327852 is about 277.3207543039.

The spelling of 21327852 in words is "twenty-one million, three hundred twenty-seven thousand, eight hundred fifty-two".