21300884 has 12 divisors (see below), whose sum is σ = 40665408. Its totient is φ = 9682200.

The previous prime is 21300869. The next prime is 21300901. The reversal of 21300884 is 48800312.

It is a congruent number.

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, 242012 + ... + 242099.

It is an arithmetic number, because the mean of its divisors is an integer number (3388784).

Almost surely, 2^21300884 is an apocalyptic number.

It is an amenable number.

21300884 is a deficient number, since it is larger than the sum of its proper divisors (19364524).

21300884 is a wasteful number, since it uses less digits than its factorization.

21300884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484126 (or 484124 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 21300884 is about 4615.2880733493. The cubic root of 21300884 is about 277.2038189385.

The spelling of 21300884 in words is "twenty-one million, three hundred thousand, eight hundred eighty-four".