21833336 has 32 divisors (see below), whose sum is σ = 47879040. Its totient is φ = 9138528.

The previous prime is 21833323. The next prime is 21833341. The reversal of 21833336 is 63333812.

It is a junction number, because it is equal to n+sod(n) for n = 21833299 and 21833308.

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, 2126 + ... + 6941.

It is an arithmetic number, because the mean of its divisors is an integer number (1496220).

Almost surely, 2^21833336 is an apocalyptic number.

It is an amenable number.

21833336 is an abundant number, since it is smaller than the sum of its proper divisors (26045704).

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

21833336 is a wasteful number, since it uses less digits than its factorization.

21833336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9123 (or 9119 counting only the distinct ones).

The product of its digits is 7776, while the sum is 29.

The square root of 21833336 is about 4672.6155416426. The cubic root of 21833336 is about 279.4945643638.

The spelling of 21833336 in words is "twenty-one million, eight hundred thirty-three thousand, three hundred thirty-six".