19242005 has 8 divisors (see below), whose sum is σ = 23121312. Its totient is φ = 15373008.

The previous prime is 19241953. The next prime is 19242017. The reversal of 19242005 is 50024291.

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 19242005 - 2¹⁰ = 19240981 is a prime.

It is a super-3 number, since 3×19242005³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 2414 + ... + 6656.

It is an arithmetic number, because the mean of its divisors is an integer number (2890164).

Almost surely, 2^19242005 is an apocalyptic number.

It is an amenable number.

19242005 is a deficient number, since it is larger than the sum of its proper divisors (3879307).

19242005 is an equidigital number, since it uses as much as digits as its factorization.

19242005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5155.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 19242005 is about 4386.5709842655. The cubic root of 19242005 is about 267.9683123224.

Adding to 19242005 its reverse (50024291), we get a palindrome (69266296).

The spelling of 19242005 in words is "nineteen million, two hundred forty-two thousand, five".