22644622 has 32 divisors (see below), whose sum is σ = 45609984. Its totient is φ = 8143200.

The previous prime is 22644619. The next prime is 22644623.

22644622 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22644623) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3654 + ... + 7657.

It is an arithmetic number, because the mean of its divisors is an integer number (1425312).

Almost surely, 2^22644622 is an apocalyptic number.

22644622 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22644622 is an abundant number, since it is smaller than the sum of its proper divisors (22965362).

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

22644622 is a wasteful number, since it uses less digits than its factorization.

22644622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11344.

The product of its digits is 9216, while the sum is 28.

The square root of 22644622 is about 4758.6365694388. The cubic root of 22644622 is about 282.9143818213.

It can be divided in two parts, 2264 and 4622, that added together give a palindrome (6886).

The spelling of 22644622 in words is "twenty-two million, six hundred forty-four thousand, six hundred twenty-two".