20222634 has 16 divisors (see below), whose sum is σ = 40514400. Its totient is φ = 6729360.

The previous prime is 20222621. The next prime is 20222689. The reversal of 20222634 is 43622202.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20222634.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1417 + ... + 6515.

It is an arithmetic number, because the mean of its divisors is an integer number (2532150).

Almost surely, 2^20222634 is an apocalyptic number.

20222634 is an abundant number, since it is smaller than the sum of its proper divisors (20291766).

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

20222634 is a wasteful number, since it uses less digits than its factorization.

20222634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5765.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 20222634 is about 4496.9583053437. The cubic root of 20222634 is about 272.4452500616.

Adding to 20222634 its reverse (43622202), we get a palindrome (63844836).

It can be divided in two parts, 2022 and 2634, that added together give a triangular number (4656 = T₉₆).

The spelling of 20222634 in words is "twenty million, two hundred twenty-two thousand, six hundred thirty-four".