21268848 has 40 divisors (see below), whose sum is σ = 55218688. Its totient is φ = 7054272.

The previous prime is 21268837. The next prime is 21268867. The reversal of 21268848 is 84886212.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9711 + ... + 11697.

Almost surely, 2^21268848 is an apocalyptic number.

It is an amenable number.

21268848 is an abundant number, since it is smaller than the sum of its proper divisors (33949840).

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

21268848 is a wasteful number, since it uses less digits than its factorization.

21268848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221 (or 2215 counting only the distinct ones).

The product of its digits is 49152, while the sum is 39.

The square root of 21268848 is about 4611.8161281647. The cubic root of 21268848 is about 277.0647799940.

The spelling of 21268848 in words is "twenty-one million, two hundred sixty-eight thousand, eight hundred forty-eight".