19128669 has 12 divisors (see below), whose sum is σ = 29669184. Its totient is φ = 10930584.

The previous prime is 19128653. The next prime is 19128713. The reversal of 19128669 is 96682191.

It is not a de Polignac number, because 19128669 - 2⁴ = 19128653 is a prime.

It is a super-2 number, since 2×19128669² = 731811955423122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19128669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19128619) by changing a digit.

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, 64917 + ... + 65210.

It is an arithmetic number, because the mean of its divisors is an integer number (2472432).

Almost surely, 2^19128669 is an apocalyptic number.

It is an amenable number.

19128669 is a deficient number, since it is larger than the sum of its proper divisors (10540515).

19128669 is a wasteful number, since it uses less digits than its factorization.

19128669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130144 (or 130137 counting only the distinct ones).

The product of its digits is 46656, while the sum is 42.

The square root of 19128669 is about 4373.6333865563. The cubic root of 19128669 is about 267.4411621255.

The spelling of 19128669 in words is "nineteen million, one hundred twenty-eight thousand, six hundred sixty-nine".