19288089 has 12 divisors (see below), whose sum is σ = 28132416. Its totient is φ = 12733272.

The previous prime is 19288079. The next prime is 19288091. The reversal of 19288089 is 98088291.

It is not a de Polignac number, because 19288089 - 2²⁰ = 18239513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19288019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9477 + ... + 11330.

It is an arithmetic number, because the mean of its divisors is an integer number (2344368).

Almost surely, 2^19288089 is an apocalyptic number.

It is an amenable number.

19288089 is a deficient number, since it is larger than the sum of its proper divisors (8844327).

19288089 is a wasteful number, since it uses less digits than its factorization.

19288089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20916 (or 20913 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The square root of 19288089 is about 4391.8206930611. The cubic root of 19288089 is about 268.1820670094.

The spelling of 19288089 in words is "nineteen million, two hundred eighty-eight thousand, eighty-nine".