21848300 has 36 divisors (see below), whose sum is σ = 48522936. Its totient is φ = 8534400.

The previous prime is 21848297. The next prime is 21848303. The reversal of 21848300 is 384812.

It is an interprime number because it is at equal distance from previous prime (21848297) and next prime (21848303).

It is a self number, because there is not a number n which added to its sum of digits gives 21848300.

It is not an unprimeable number, because it can be changed into a prime (21848303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1760 + ... + 6840.

Almost surely, 2^21848300 is an apocalyptic number.

21848300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21848300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24261468).

21848300 is an abundant number, since it is smaller than the sum of its proper divisors (26674636).

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

21848300 is a wasteful number, since it uses less digits than its factorization.

21848300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5138 (or 5131 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 21848300 is about 4674.2165118873. The cubic root of 21848300 is about 279.5584025473.

The spelling of 21848300 in words is "twenty-one million, eight hundred forty-eight thousand, three hundred".