21936092 has 12 divisors (see below), whose sum is σ = 38603880. Its totient is φ = 10906416.

The previous prime is 21936091. The next prime is 21936113. The reversal of 21936092 is 29063912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21936091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14603 + ... + 16034.

It is an arithmetic number, because the mean of its divisors is an integer number (3216990).

Almost surely, 2^21936092 is an apocalyptic number.

It is an amenable number.

21936092 is a deficient number, since it is larger than the sum of its proper divisors (16667788).

21936092 is a wasteful number, since it uses less digits than its factorization.

21936092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30820 (or 30818 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 21936092 is about 4683.5981894266. The cubic root of 21936092 is about 279.9323476010.

The spelling of 21936092 in words is "twenty-one million, nine hundred thirty-six thousand, ninety-two".