21933092 has 6 divisors (see below), whose sum is σ = 38382918. Its totient is φ = 10966544.

The previous prime is 21933091. The next prime is 21933127. The reversal of 21933092 is 29033912.

It can be written as a sum of positive squares in only one way, i.e., 18028516 + 3904576 = 4246^2 + 1976^2 .

It is not an unprimeable number, because it can be changed into a prime (21933091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2741633 + ... + 2741640.

It is an arithmetic number, because the mean of its divisors is an integer number (6397153).

Almost surely, 2^21933092 is an apocalyptic number.

It is an amenable number.

21933092 is a deficient number, since it is larger than the sum of its proper divisors (16449826).

21933092 is a wasteful number, since it uses less digits than its factorization.

21933092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5483277 (or 5483275 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 21933092 is about 4683.2779118903. The cubic root of 21933092 is about 279.9195857513.

The spelling of 21933092 in words is "twenty-one million, nine hundred thirty-three thousand, ninety-two".