22162506 has 16 divisors (see below), whose sum is σ = 44452800. Its totient is φ = 7366208.

The previous prime is 22162471. The next prime is 22162507. The reversal of 22162506 is 60526122.

It is not an unprimeable number, because it can be changed into a prime (22162507) 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, 2991 + ... + 7298.

It is an arithmetic number, because the mean of its divisors is an integer number (2778300).

Almost surely, 2^22162506 is an apocalyptic number.

22162506 is an abundant number, since it is smaller than the sum of its proper divisors (22290294).

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

22162506 is a wasteful number, since it uses less digits than its factorization.

22162506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10653.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 22162506 is about 4707.7070851955. The cubic root of 22162506 is about 280.8921627897.

Adding to 22162506 its reverse (60526122), we get a palindrome (82688628).

The spelling of 22162506 in words is "twenty-two million, one hundred sixty-two thousand, five hundred six".