1909424099 has 8 divisors (see below), whose sum is σ = 2083449648. Its totient is φ = 1735472160.

The previous prime is 1909424093. The next prime is 1909424107. The reversal of 1909424099 is 9904249091.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1909424099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1909424093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45509 + ... + 76745.

It is an arithmetic number, because the mean of its divisors is an integer number (260431206).

Almost surely, 2^1909424099 is an apocalyptic number.

1909424099 is a deficient number, since it is larger than the sum of its proper divisors (174025549).

1909424099 is a wasteful number, since it uses less digits than its factorization.

1909424099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36805.

The product of its (nonzero) digits is 209952, while the sum is 47.

The square root of 1909424099 is about 43696.9575485525. The cubic root of 1909424099 is about 1240.6067311308.

The spelling of 1909424099 in words is "one billion, nine hundred nine million, four hundred twenty-four thousand, ninety-nine".