22436427 has 16 divisors (see below), whose sum is σ = 32302368. Its totient is φ = 13770240.

The previous prime is 22436419. The next prime is 22436429. The reversal of 22436427 is 72463422.

It is not a de Polignac number, because 22436427 - 2³ = 22436419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22436394 and 22436403.

It is not an unprimeable number, because it can be changed into a prime (22436429) 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 15 ways as a sum of consecutive naturals, for example, 25027 + ... + 25907.

It is an arithmetic number, because the mean of its divisors is an integer number (2018898).

Almost surely, 2^22436427 is an apocalyptic number.

22436427 is a deficient number, since it is larger than the sum of its proper divisors (9865941).

22436427 is a wasteful number, since it uses less digits than its factorization.

22436427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1550.

The product of its digits is 16128, while the sum is 30.

The square root of 22436427 is about 4736.7105674719. The cubic root of 22436427 is about 282.0446712594.

Adding to 22436427 its reverse (72463422), we get a palindrome (94899849).

The spelling of 22436427 in words is "twenty-two million, four hundred thirty-six thousand, four hundred twenty-seven".