19223056 has 40 divisors (see below), whose sum is σ = 40812120. Its totient is φ = 8730624.

The previous prime is 19223051. The next prime is 19223077. The reversal of 19223056 is 65032291.

It can be written as a sum of positive squares in 4 ways, for example, as 10342656 + 8880400 = 3216^2 + 2980^2 .

It is not an unprimeable number, because it can be changed into a prime (19223051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6670 + ... + 9106.

It is an arithmetic number, because the mean of its divisors is an integer number (1020303).

Almost surely, 2^19223056 is an apocalyptic number.

19223056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19223056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20406060).

19223056 is an abundant number, since it is smaller than the sum of its proper divisors (21589064).

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

19223056 is a wasteful number, since it uses less digits than its factorization.

19223056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2491 (or 2485 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 19223056 is about 4384.4105647168. The cubic root of 19223056 is about 267.8803208117.

The spelling of 19223056 in words is "nineteen million, two hundred twenty-three thousand, fifty-six".