21482832 has 80 divisors (see below), whose sum is σ = 67174272. Its totient is φ = 5775360.

The previous prime is 21482827. The next prime is 21482837. The reversal of 21482832 is 23828412.

It is an interprime number because it is at equal distance from previous prime (21482827) and next prime (21482837).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 21482832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21482837) 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, 3832 + ... + 7592.

Almost surely, 2^21482832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21482832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33587136).

21482832 is an abundant number, since it is smaller than the sum of its proper divisors (45691440).

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

21482832 is a wasteful number, since it uses less digits than its factorization.

21482832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3796 (or 3790 counting only the distinct ones).

The product of its digits is 6144, while the sum is 30.

The square root of 21482832 is about 4634.9576049841. The cubic root of 21482832 is about 277.9908559351.

The spelling of 21482832 in words is "twenty-one million, four hundred eighty-two thousand, eight hundred thirty-two".