19042289 has 8 divisors (see below), whose sum is σ = 21835968. Its totient is φ = 16266960.

The previous prime is 19042267. The next prime is 19042307. The reversal of 19042289 is 98224091.

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

It is a cyclic number.

It is not a de Polignac number, because 19042289 - 2¹² = 19038193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19042259) 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 7 ways as a sum of consecutive naturals, for example, 2282 + ... + 6579.

It is an arithmetic number, because the mean of its divisors is an integer number (2729496).

Almost surely, 2^19042289 is an apocalyptic number.

It is an amenable number.

19042289 is a deficient number, since it is larger than the sum of its proper divisors (2793679).

19042289 is an equidigital number, since it uses as much as digits as its factorization.

19042289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9175.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 19042289 is about 4363.7471283290. The cubic root of 19042289 is about 267.0379901710.

The spelling of 19042289 in words is "nineteen million, forty-two thousand, two hundred eighty-nine".