22566238 has 8 divisors (see below), whose sum is σ = 34065432. Its totient is φ = 11211096.

The previous prime is 22566227. The next prime is 22566241. The reversal of 22566238 is 83266522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35620 + ... + 36247.

It is an arithmetic number, because the mean of its divisors is an integer number (4258179).

Almost surely, 2^22566238 is an apocalyptic number.

22566238 is a deficient number, since it is larger than the sum of its proper divisors (11499194).

22566238 is a wasteful number, since it uses less digits than its factorization.

22566238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72026.

The product of its digits is 34560, while the sum is 34.

The square root of 22566238 is about 4750.3934573886. The cubic root of 22566238 is about 282.5875698970.

The spelling of 22566238 in words is "twenty-two million, five hundred sixty-six thousand, two hundred thirty-eight".