22093381 has 2 divisors, whose sum is σ = 22093382. Its totient is φ = 22093380.

The previous prime is 22093373. The next prime is 22093411. The reversal of 22093381 is 18339022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17297281 + 4796100 = 4159^2 + 2190^2 .

It is a cyclic number.

It is not a de Polignac number, because 22093381 - 2³ = 22093373 is a prime.

It is a super-2 number, since 2×22093381² = 976234968022322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22093481) 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, 11046690 + 11046691.

It is an arithmetic number, because the mean of its divisors is an integer number (11046691).

Almost surely, 2^22093381 is an apocalyptic number.

It is an amenable number.

22093381 is a deficient number, since it is larger than the sum of its proper divisors (1).

22093381 is an equidigital number, since it uses as much as digits as its factorization.

22093381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 22093381 is about 4700.3596670893. The cubic root of 22093381 is about 280.5998238170.

The spelling of 22093381 in words is "twenty-two million, ninety-three thousand, three hundred eighty-one".