21482352 has 30 divisors (see below), whose sum is σ = 60121152. Its totient is φ = 7160736.

The previous prime is 21482303. The next prime is 21482353. The reversal of 21482352 is 25328412.

It is a super-2 number, since 2×21482352² = 922982894903808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21482353) 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 5 ways as a sum of consecutive naturals, for example, 74448 + ... + 74735.

Almost surely, 2^21482352 is an apocalyptic number.

It is an amenable number.

21482352 is an abundant number, since it is smaller than the sum of its proper divisors (38638800).

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

21482352 is a wasteful number, since it uses less digits than its factorization.

21482352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149197 (or 149188 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 21482352 is about 4634.9058242860. The cubic root of 21482352 is about 277.9887854973.

The spelling of 21482352 in words is "twenty-one million, four hundred eighty-two thousand, three hundred fifty-two".