22163436 has 48 divisors (see below), whose sum is σ = 57859200. Its totient is φ = 7336656.

The previous prime is 22163417. The next prime is 22163459. The reversal of 22163436 is 63436122.

22163436 is a `hidden beast` number, since 2 + 21 + 634 + 3 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16975 + ... + 18233.

It is an arithmetic number, because the mean of its divisors is an integer number (1205400).

Almost surely, 2^22163436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22163436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28929600).

22163436 is an abundant number, since it is smaller than the sum of its proper divisors (35695764).

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

22163436 is a wasteful number, since it uses less digits than its factorization.

22163436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435 (or 1427 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 22163436 is about 4707.8058583591. The cubic root of 22163436 is about 280.8960917386.

Adding to 22163436 its reverse (63436122), we get a palindrome (85599558).

The spelling of 22163436 in words is "twenty-two million, one hundred sixty-three thousand, four hundred thirty-six".