21936300 has 36 divisors (see below), whose sum is σ = 63469896. Its totient is φ = 5849600.

The previous prime is 21936293. The next prime is 21936323. The reversal of 21936300 is 363912.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36261 + ... + 36860.

Almost surely, 2^21936300 is an apocalyptic number.

21936300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21936300 is an abundant number, since it is smaller than the sum of its proper divisors (41533596).

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

21936300 is a wasteful number, since it uses less digits than its factorization.

21936300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73138 (or 73131 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 21936300 is about 4683.6203945239. The cubic root of 21936300 is about 279.9332323795.

The spelling of 21936300 in words is "twenty-one million, nine hundred thirty-six thousand, three hundred".