22726285 has 8 divisors (see below), whose sum is σ = 28212120. Its totient is φ = 17553984.

The previous prime is 22726283. The next prime is 22726303. The reversal of 22726285 is 58262722.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2196324 + 20529961 = 1482^2 + 4531^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 22726285 - 2¹ = 22726283 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22726285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22726283) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 78222 + ... + 78511.

It is an arithmetic number, because the mean of its divisors is an integer number (3526515).

Almost surely, 2^22726285 is an apocalyptic number.

It is an amenable number.

22726285 is a deficient number, since it is larger than the sum of its proper divisors (5485835).

22726285 is a wasteful number, since it uses less digits than its factorization.

22726285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156767.

The product of its digits is 26880, while the sum is 34.

The square root of 22726285 is about 4767.2093513921. The cubic root of 22726285 is about 283.2540639453.

It can be divided in two parts, 227 and 26285, that multiplied together give a palindrome (5966695).

The spelling of 22726285 in words is "twenty-two million, seven hundred twenty-six thousand, two hundred eighty-five".