19198080 has 256 divisors, whose sum is σ = 74908800. Its totient is φ = 4608000.

The previous prime is 19198073. The next prime is 19198097. The reversal of 19198080 is 8089191.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 190030 + ... + 190130.

Almost surely, 2^19198080 is an apocalyptic number.

19198080 is a gapful number since it is divisible by the number (10) 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 19198080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37454400).

19198080 is an abundant number, since it is smaller than the sum of its proper divisors (55710720).

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

19198080 is a wasteful number, since it uses less digits than its factorization.

19198080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 36.

The square root of 19198080 is about 4381.5613655408. The cubic root of 19198080 is about 267.7642539627.

Subtracting from 19198080 its reverse (8089191), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 1919 and 8080, that added together give a palindrome (9999).

The spelling of 19198080 in words is "nineteen million, one hundred ninety-eight thousand, eighty".