19199800 has 48 divisors (see below), whose sum is σ = 47273760. Its totient is φ = 7226880.

The previous prime is 19199777. The next prime is 19199821. The reversal of 19199800 is 899191.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 19199800.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 577 + ... + 6223.

It is an arithmetic number, because the mean of its divisors is an integer number (984870).

Almost surely, 2^19199800 is an apocalyptic number.

19199800 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 19199800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23636880).

19199800 is an abundant number, since it is smaller than the sum of its proper divisors (28073960).

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

19199800 is a wasteful number, since it uses less digits than its factorization.

19199800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5680 (or 5671 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 37.

The square root of 19199800 is about 4381.7576382087. The cubic root of 19199800 is about 267.7722502617.

The spelling of 19199800 in words is "nineteen million, one hundred ninety-nine thousand, eight hundred".