22506234 has 16 divisors (see below), whose sum is σ = 45459360. Its totient is φ = 7427600.

The previous prime is 22506191. The next prime is 22506247. The reversal of 22506234 is 43260522.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17964 + ... + 19175.

It is an arithmetic number, because the mean of its divisors is an integer number (2841210).

Almost surely, 2^22506234 is an apocalyptic number.

22506234 is an abundant number, since it is smaller than the sum of its proper divisors (22953126).

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

22506234 is a wasteful number, since it uses less digits than its factorization.

22506234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37245.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 22506234 is about 4744.0735660401. The cubic root of 22506234 is about 282.3368792283.

Adding to 22506234 its reverse (43260522), we get a palindrome (65766756).

The spelling of 22506234 in words is "twenty-two million, five hundred six thousand, two hundred thirty-four".