22642275 has 12 divisors (see below), whose sum is σ = 37435352. Its totient is φ = 12075840.

The previous prime is 22642273. The next prime is 22642313. The reversal of 22642275 is 57224622.

It is not a de Polignac number, because 22642275 - 2¹ = 22642273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22642271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150874 + ... + 151023.

Almost surely, 2^22642275 is an apocalyptic number.

22642275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22642275 is a deficient number, since it is larger than the sum of its proper divisors (14793077).

22642275 is a wasteful number, since it uses less digits than its factorization.

22642275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301910 (or 301905 counting only the distinct ones).

The product of its digits is 13440, while the sum is 30.

The square root of 22642275 is about 4758.3899587991. The cubic root of 22642275 is about 282.9046072709.

Adding to 22642275 its reverse (57224622), we get a palindrome (79866897).

The spelling of 22642275 in words is "twenty-two million, six hundred forty-two thousand, two hundred seventy-five".