21848652 has 72 divisors (see below), whose sum is σ = 63548576. Its totient is φ = 6200064.

The previous prime is 21848647. The next prime is 21848653. The reversal of 21848652 is 25684812.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (21848653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69648 + ... + 69960.

Almost surely, 2^21848652 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 21848652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31774288).

21848652 is an abundant number, since it is smaller than the sum of its proper divisors (41699924).

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

21848652 is a wasteful number, since it uses less digits than its factorization.

21848652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607 (or 602 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 21848652 is about 4674.2541651048. The cubic root of 21848652 is about 279.5599038698.

It can be divided in two parts, 21848 and 652, that added together give a square (22500 = 150²).

The spelling of 21848652 in words is "twenty-one million, eight hundred forty-eight thousand, six hundred fifty-two".