22922285 has 4 divisors (see below), whose sum is σ = 27506748. Its totient is φ = 18337824.

The previous prime is 22922281. The next prime is 22922353. The reversal of 22922285 is 58222922.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58222922 = 2 ⋅29111461.

It can be written as a sum of positive squares in 2 ways, for example, as 18130564 + 4791721 = 4258^2 + 2189^2 .

It is a cyclic number.

It is not a de Polignac number, because 22922285 - 2² = 22922281 is a prime.

It is a super-2 number, since 2×22922285² = 1050862299242450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22922281) 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 3 ways as a sum of consecutive naturals, for example, 2292224 + ... + 2292233.

It is an arithmetic number, because the mean of its divisors is an integer number (6876687).

Almost surely, 2^22922285 is an apocalyptic number.

It is an amenable number.

22922285 is a deficient number, since it is larger than the sum of its proper divisors (4584463).

22922285 is an equidigital number, since it uses as much as digits as its factorization.

22922285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4584462.

The product of its digits is 11520, while the sum is 32.

The square root of 22922285 is about 4787.7223185979. The cubic root of 22922285 is about 284.0660305700.

The spelling of 22922285 in words is "twenty-two million, nine hundred twenty-two thousand, two hundred eighty-five".