21126848 has 28 divisors (see below), whose sum is σ = 43373040. Its totient is φ = 10198272.

The previous prime is 21126827. The next prime is 21126851. The reversal of 21126848 is 84862112.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3836 + ... + 7547.

Almost surely, 2^21126848 is an apocalyptic number.

It is an amenable number.

21126848 is an abundant number, since it is smaller than the sum of its proper divisors (22246192).

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

21126848 is a wasteful number, since it uses less digits than its factorization.

21126848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11424 (or 11414 counting only the distinct ones).

The product of its digits is 6144, while the sum is 32.

The square root of 21126848 is about 4596.3951092133. The cubic root of 21126848 is about 276.4468013372.

The spelling of 21126848 in words is "twenty-one million, one hundred twenty-six thousand, eight hundred forty-eight".