19042089 has 8 divisors (see below), whose sum is σ = 27697632. Its totient is φ = 11540640.

The previous prime is 19042063. The next prime is 19042103. The reversal of 19042089 is 98024091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19042089 - 2¹¹ = 19040041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 577033 = 19042089 / (1 + 9 + 0 + 4 + 2 + 0 + 8 + 9).

It is not an unprimeable number, because it can be changed into a prime (19042019) 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 7 ways as a sum of consecutive naturals, for example, 288484 + ... + 288549.

It is an arithmetic number, because the mean of its divisors is an integer number (3462204).

Almost surely, 2^19042089 is an apocalyptic number.

It is an amenable number.

19042089 is a deficient number, since it is larger than the sum of its proper divisors (8655543).

19042089 is a wasteful number, since it uses less digits than its factorization.

19042089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577047.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 19042089 is about 4363.7242121839. The cubic root of 19042089 is about 267.0370552731.

It can be divided in two parts, 1904 and 2089, that added together give a palindrome (3993).

The spelling of 19042089 in words is "nineteen million, forty-two thousand, eighty-nine".