19240869 has 8 divisors (see below), whose sum is σ = 25678080. Its totient is φ = 12815456.

The previous prime is 19240853. The next prime is 19240919. The reversal of 19240869 is 96804291.

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 19240869 - 2⁴ = 19240853 is a prime.

It is a super-2 number, since 2×19240869² = 740422079750322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19240469) 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, 2089 + ... + 6545.

It is an arithmetic number, because the mean of its divisors is an integer number (3209760).

Almost surely, 2^19240869 is an apocalyptic number.

It is an amenable number.

19240869 is a deficient number, since it is larger than the sum of its proper divisors (6437211).

19240869 is a wasteful number, since it uses less digits than its factorization.

19240869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5899.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 19240869 is about 4386.4414962473. The cubic root of 19240869 is about 267.9630388249.

The spelling of 19240869 in words is "nineteen million, two hundred forty thousand, eight hundred sixty-nine".