19104239 has 16 divisors (see below), whose sum is σ = 24005376. Its totient is φ = 14769600.

The previous prime is 19104233. The next prime is 19104257. The reversal of 19104239 is 93240191.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 19104239 - 2⁴ = 19104223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19104233) 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 15 ways as a sum of consecutive naturals, for example, 9644 + ... + 11454.

It is an arithmetic number, because the mean of its divisors is an integer number (1500336).

Almost surely, 2^19104239 is an apocalyptic number.

19104239 is a deficient number, since it is larger than the sum of its proper divisors (4901137).

19104239 is a wasteful number, since it uses less digits than its factorization.

19104239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1966.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 19104239 is about 4370.8396218576. The cubic root of 19104239 is about 267.3272602992.

The spelling of 19104239 in words is "nineteen million, one hundred four thousand, two hundred thirty-nine".