19190196 has 42 divisors (see below), whose sum is σ = 50358882. Its totient is φ = 6395760.

The previous prime is 19190179. The next prime is 19190203. The reversal of 19190196 is 69109191.

It can be written as a sum of positive squares in only one way, i.e., 14288400 + 4901796 = 3780^2 + 2214^2 .

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

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 19190196.

It is a congruent number.

It is an unprimeable number.

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 13 ways as a sum of consecutive naturals, for example, 375 + ... + 6206.

It is an arithmetic number, because the mean of its divisors is an integer number (1199021).

Almost surely, 2^19190196 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 19190196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25179441).

19190196 is an abundant number, since it is smaller than the sum of its proper divisors (31168686).

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

19190196 is an equidigital number, since it uses as much as digits as its factorization.

19190196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6603 (or 6586 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 36.

The square root of 19190196 is about 4380.6615938691. The cubic root of 19190196 is about 267.7275950464.

The spelling of 19190196 in words is "nineteen million, one hundred ninety thousand, one hundred ninety-six".