22141422 has 48 divisors (see below), whose sum is σ = 51077520. Its totient is φ = 6912000.

The previous prime is 22141397. The next prime is 22141451. The reversal of 22141422 is 22414122.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22141395 and 22141404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34222 + ... + 34862.

It is an arithmetic number, because the mean of its divisors is an integer number (1064115).

Almost surely, 2^22141422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22141422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25538760).

22141422 is an abundant number, since it is smaller than the sum of its proper divisors (28936098).

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

22141422 is a wasteful number, since it uses less digits than its factorization.

22141422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769 (or 766 counting only the distinct ones).

The product of its digits is 256, while the sum is 18.

The square root of 22141422 is about 4705.4672456622. The cubic root of 22141422 is about 280.8030602097.

Adding to 22141422 its reverse (22414122), we get a palindrome (44555544).

It can be divided in two parts, 2214142 and 2, that added together give a square (2214144 = 1488²).

The spelling of 22141422 in words is "twenty-two million, one hundred forty-one thousand, four hundred twenty-two".