2238930809 has 8 divisors (see below), whose sum is σ = 2260899648. Its totient is φ = 2216981520.

The previous prime is 2238930779. The next prime is 2238930823. The reversal of 2238930809 is 9080398322.

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 2238930809 - 2⁸ = 2238930553 is a prime.

It is a super-2 number, since 2×2238930809² = 10025622334978788962, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2238930809.

It is not an unprimeable number, because it can be changed into a prime (2238930839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346799 + ... + 353195.

It is an arithmetic number, because the mean of its divisors is an integer number (282612456).

Almost surely, 2^2238930809 is an apocalyptic number.

It is an amenable number.

2238930809 is a deficient number, since it is larger than the sum of its proper divisors (21968839).

2238930809 is a wasteful number, since it uses less digits than its factorization.

2238930809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9775.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 2238930809 is about 47317.3415250688. The cubic root of 2238930809 is about 1308.2183126908.

The spelling of 2238930809 in words is "two billion, two hundred thirty-eight million, nine hundred thirty thousand, eight hundred nine".