19228104 has 128 divisors (see below), whose sum is σ = 62188800. Its totient is φ = 5458752.

The previous prime is 19228093. The next prime is 19228109. The reversal of 19228104 is 40182291.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19228109) 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 31 ways as a sum of consecutive naturals, for example, 122394 + ... + 122550.

It is an arithmetic number, because the mean of its divisors is an integer number (485850).

Almost surely, 2^19228104 is an apocalyptic number.

19228104 is a gapful number since it is divisible by the number (14) 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 19228104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31094400).

19228104 is an abundant number, since it is smaller than the sum of its proper divisors (42960696).

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

19228104 is an equidigital number, since it uses as much as digits as its factorization.

19228104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 19228104 is about 4384.9862029429. The cubic root of 19228104 is about 267.9037673353.

The spelling of 19228104 in words is "nineteen million, two hundred twenty-eight thousand, one hundred four".