19099072 has 28 divisors (see below), whose sum is σ = 38267640. Its totient is φ = 9456896.

The previous prime is 19099057. The next prime is 19099079. The reversal of 19099072 is 27099091.

It is a super-2 number, since 2×19099072² = 729549102522368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19099079) 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 3 ways as a sum of consecutive naturals, for example, 5454 + ... + 8242.

Almost surely, 2^19099072 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 19099072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19133820).

19099072 is an abundant number, since it is smaller than the sum of its proper divisors (19168568).

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

19099072 is a wasteful number, since it uses less digits than its factorization.

19099072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2908 (or 2898 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 37.

The square root of 19099072 is about 4370.2485055200. The cubic root of 19099072 is about 267.3031573675.

The spelling of 19099072 in words is "nineteen million, ninety-nine thousand, seventy-two".