19222192 has 40 divisors (see below), whose sum is σ = 40957200. Its totient is φ = 8666880.

The previous prime is 19222183. The next prime is 19222193. The reversal of 19222192 is 29122291.

It is a self number, because there is not a number n which added to its sum of digits gives 19222192.

It is not an unprimeable number, because it can be changed into a prime (19222193) by changing a digit.

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, 25858 + ... + 26590.

It is an arithmetic number, because the mean of its divisors is an integer number (1023930).

Almost surely, 2^19222192 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19222192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20478600).

19222192 is an abundant number, since it is smaller than the sum of its proper divisors (21735008).

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

19222192 is a wasteful number, since it uses less digits than its factorization.

19222192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901 (or 895 counting only the distinct ones).

The product of its digits is 1296, while the sum is 28.

The square root of 19222192 is about 4384.3120326911. The cubic root of 19222192 is about 267.8763073661.

Subtracting 19222192 from its reverse (29122291), we obtain a palindrome (9900099).

It can be divided in two parts, 1922 and 2192, that added together give a palindrome (4114).

The spelling of 19222192 in words is "nineteen million, two hundred twenty-two thousand, one hundred ninety-two".