19144422 has 48 divisors (see below), whose sum is σ = 46725120. Its totient is φ = 5612400.

The previous prime is 19144421. The next prime is 19144439. The reversal of 19144422 is 22444191.

It is a happy number.

19144422 is nontrivially palindromic in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19144421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4579 + ... + 7697.

It is an arithmetic number, because the mean of its divisors is an integer number (973440).

Almost surely, 2^19144422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19144422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23362560).

19144422 is an abundant number, since it is smaller than the sum of its proper divisors (27580698).

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

19144422 is a wasteful number, since it uses less digits than its factorization.

19144422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3169 (or 3166 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 19144422 is about 4375.4339213385. The cubic root of 19144422 is about 267.5145571022.

It can be divided in two parts, 1914 and 4422, that added together give a palindrome (6336).

The spelling of 19144422 in words is "nineteen million, one hundred forty-four thousand, four hundred twenty-two".