21883048 has 32 divisors (see below), whose sum is σ = 45108000. Its totient is φ = 9869760.

The previous prime is 21883039. The next prime is 21883049. The reversal of 21883048 is 84038812.

It is not an unprimeable number, because it can be changed into a prime (21883049) 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, 11338 + ... + 13126.

It is an arithmetic number, because the mean of its divisors is an integer number (1409625).

Almost surely, 2^21883048 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 21883048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22554000).

21883048 is an abundant number, since it is smaller than the sum of its proper divisors (23224952).

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

21883048 is a wasteful number, since it uses less digits than its factorization.

21883048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1945 (or 1941 counting only the distinct ones).

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

The square root of 21883048 is about 4677.9320217378. The cubic root of 21883048 is about 279.7065292526.

The spelling of 21883048 in words is "twenty-one million, eight hundred eighty-three thousand, forty-eight".