22066371 has 8 divisors (see below), whose sum is σ = 32690960. Its totient is φ = 14710896.

The previous prime is 22066351. The next prime is 22066397. The reversal of 22066371 is 17366022.

It is a happy number.

22066371 is a `hidden beast` number, since 2 + 20 + 6 + 637 + 1 = 666.

It is not a de Polignac number, because 22066371 - 2⁷ = 22066243 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 817273 = 22066371 / (2 + 2 + 0 + 6 + 6 + 3 + 7 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22066321) 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 in 7 ways as a sum of consecutive naturals, for example, 408610 + ... + 408663.

It is an arithmetic number, because the mean of its divisors is an integer number (4086370).

Almost surely, 2^22066371 is an apocalyptic number.

22066371 is a deficient number, since it is larger than the sum of its proper divisors (10624589).

22066371 is an equidigital number, since it uses as much as digits as its factorization.

22066371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817282 (or 817276 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 22066371 is about 4697.4856040226. The cubic root of 22066371 is about 280.4854291954.

The spelling of 22066371 in words is "twenty-two million, sixty-six thousand, three hundred seventy-one".