21614848 has 36 divisors (see below), whose sum is σ = 45033408. Its totient is φ = 10334720.

The previous prime is 21614833. The next prime is 21614849. The reversal of 21614848 is 84841612.

It is not an unprimeable number, because it can be changed into a prime (21614849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4053 + ... + 7723.

It is an arithmetic number, because the mean of its divisors is an integer number (1250928).

Almost surely, 2^21614848 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 21614848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22516704).

21614848 is an abundant number, since it is smaller than the sum of its proper divisors (23418560).

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

21614848 is an equidigital number, since it uses as much as digits as its factorization.

21614848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3710 (or 3696 counting only the distinct ones).

The product of its digits is 12288, while the sum is 34.

The square root of 21614848 is about 4649.1771314933. The cubic root of 21614848 is about 278.5591286514.

The spelling of 21614848 in words is "twenty-one million, six hundred fourteen thousand, eight hundred forty-eight".