22563436 has 24 divisors (see below), whose sum is σ = 45547040. Its totient is φ = 9580032.

The previous prime is 22563419. The next prime is 22563449. The reversal of 22563436 is 63436522.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22563398 and 22563407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 645 + ... + 6748.

Almost surely, 2^22563436 is an apocalyptic number.

It is an amenable number.

22563436 is an abundant number, since it is smaller than the sum of its proper divisors (22983604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22563436 is a wasteful number, since it uses less digits than its factorization.

22563436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7513 (or 7511 counting only the distinct ones).

The product of its digits is 25920, while the sum is 31.

The square root of 22563436 is about 4750.0985252940. The cubic root of 22563436 is about 282.5758733212.

Adding to 22563436 its reverse (63436522), we get a palindrome (85999958).

The spelling of 22563436 in words is "twenty-two million, five hundred sixty-three thousand, four hundred thirty-six".