22506036 has 24 divisors (see below), whose sum is σ = 60016320. Its totient is φ = 6430272.

The previous prime is 22506023. The next prime is 22506047. The reversal of 22506036 is 63060522.

It is a junction number, because it is equal to n+sod(n) for n = 22505997 and 22506015.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 133881 + ... + 134048.

It is an arithmetic number, because the mean of its divisors is an integer number (2500680).

Almost surely, 2^22506036 is an apocalyptic number.

It is an amenable number.

22506036 is an abundant number, since it is smaller than the sum of its proper divisors (37510284).

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

22506036 is a wasteful number, since it uses less digits than its factorization.

22506036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267943 (or 267941 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 22506036 is about 4744.0526978523. The cubic root of 22506036 is about 282.3360512671.

Adding to 22506036 its reverse (63060522), we get a palindrome (85566558).

The spelling of 22506036 in words is "twenty-two million, five hundred six thousand, thirty-six".