19190272 has 40 divisors (see below), whose sum is σ = 39418236. Its totient is φ = 9326592.

The previous prime is 19190261. The next prime is 19190273. The reversal of 19190272 is 27209191.

It can be written as a sum of positive squares in 2 ways, for example, as 18800896 + 389376 = 4336^2 + 624^2 .

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (19190273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18438 + ... + 19450.

Almost surely, 2^19190272 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 19190272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19709118).

19190272 is an abundant number, since it is smaller than the sum of its proper divisors (20227964).

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

19190272 is an equidigital number, since it uses as much as digits as its factorization.

19190272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068 (or 1052 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 19190272 is about 4380.6702683494. The cubic root of 19190272 is about 267.7279484781.

The spelling of 19190272 in words is "nineteen million, one hundred ninety thousand, two hundred seventy-two".