20224136 has 32 divisors (see below), whose sum is σ = 39528000. Its totient is φ = 9688896.

The previous prime is 20224133. The next prime is 20224157. The reversal of 20224136 is 63142202.

It is not an unprimeable number, because it can be changed into a prime (20224133) 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, 41285 + ... + 41771.

It is an arithmetic number, because the mean of its divisors is an integer number (1235250).

Almost surely, 2^20224136 is an apocalyptic number.

It is an amenable number.

20224136 is a deficient number, since it is larger than the sum of its proper divisors (19303864).

20224136 is a wasteful number, since it uses less digits than its factorization.

20224136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701 (or 697 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 20224136 is about 4497.1253040137. The cubic root of 20224136 is about 272.4519950226.

Adding to 20224136 its reverse (63142202), we get a palindrome (83366338).

The spelling of 20224136 in words is "twenty million, two hundred twenty-four thousand, one hundred thirty-six".