2238185489 has 8 divisors (see below), whose sum is σ = 2245632000. Its totient is φ = 2230751952.

The previous prime is 2238185483. The next prime is 2238185491. The reversal of 2238185489 is 9845818322.

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-2238185489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2238185483) 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, 434672 + ... + 439790.

It is an arithmetic number, because the mean of its divisors is an integer number (280704000).

Almost surely, 2^2238185489 is an apocalyptic number.

It is an amenable number.

2238185489 is a deficient number, since it is larger than the sum of its proper divisors (7446511).

2238185489 is an equidigital number, since it uses as much as digits as its factorization.

2238185489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6487.

The product of its digits is 1105920, while the sum is 50.

The square root of 2238185489 is about 47309.4651100602. The cubic root of 2238185489 is about 1308.0731318626.

The spelling of 2238185489 in words is "two billion, two hundred thirty-eight million, one hundred eighty-five thousand, four hundred eighty-nine".