21848648 has 32 divisors (see below), whose sum is σ = 42389760. Its totient is φ = 10549440.

The previous prime is 21848647. The next prime is 21848653. The reversal of 21848648 is 84684812.

It is not an unprimeable number, because it can be changed into a prime (21848641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65843 + ... + 66173.

It is an arithmetic number, because the mean of its divisors is an integer number (1324680).

Almost surely, 2^21848648 is an apocalyptic number.

It is an amenable number.

21848648 is a deficient number, since it is larger than the sum of its proper divisors (20541112).

21848648 is a wasteful number, since it uses less digits than its factorization.

21848648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597 (or 593 counting only the distinct ones).

The product of its digits is 98304, while the sum is 41.

The square root of 21848648 is about 4674.2537372291. The cubic root of 21848648 is about 279.5598868094.

The spelling of 21848648 in words is "twenty-one million, eight hundred forty-eight thousand, six hundred forty-eight".