22136434 has 16 divisors (see below), whose sum is σ = 34234200. Its totient is φ = 10727424.

The previous prime is 22136417. The next prime is 22136437. The reversal of 22136434 is 43463122.

It can be written as a sum of positive squares in 4 ways, for example, as 19404025 + 2732409 = 4405^2 + 1653^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22136399 and 22136408.

It is not an unprimeable number, because it can be changed into a prime (22136437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28402 + ... + 29170.

Almost surely, 2^22136434 is an apocalyptic number.

22136434 is a deficient number, since it is larger than the sum of its proper divisors (12097766).

22136434 is a wasteful number, since it uses less digits than its factorization.

22136434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197.

The product of its digits is 3456, while the sum is 25.

The square root of 22136434 is about 4704.9371940548. The cubic root of 22136434 is about 280.7819722709.

Adding to 22136434 its reverse (43463122), we get a palindrome (65599556).

The spelling of 22136434 in words is "twenty-two million, one hundred thirty-six thousand, four hundred thirty-four".