19044396 has 96 divisors (see below), whose sum is σ = 57308160. Its totient is φ = 5423760.

The previous prime is 19044379. The next prime is 19044397. The reversal of 19044396 is 69344091.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 19044396.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19044397) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61081 + ... + 61391.

It is an arithmetic number, because the mean of its divisors is an integer number (596960).

Almost surely, 2^19044396 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 19044396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28654080).

19044396 is an abundant number, since it is smaller than the sum of its proper divisors (38263764).

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

19044396 is an equidigital number, since it uses as much as digits as its factorization.

19044396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 19044396 is about 4363.9885426064. The cubic root of 19044396 is about 267.0478389221.

The spelling of 19044396 in words is "nineteen million, forty-four thousand, three hundred ninety-six".