238218433 has 8 divisors (see below), whose sum is σ = 255997152. Its totient is φ = 220858176.

The previous prime is 238218373. The next prime is 238218437. The reversal of 238218433 is 334812832.

238218433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 238218433 - 2⁹ = 238217921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (238218437) 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, 103435 + ... + 105712.

It is an arithmetic number, because the mean of its divisors is an integer number (31999644).

Almost surely, 2^238218433 is an apocalyptic number.

It is an amenable number.

238218433 is a deficient number, since it is larger than the sum of its proper divisors (17778719).

238218433 is a wasteful number, since it uses less digits than its factorization.

238218433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209231.

The product of its digits is 27648, while the sum is 34.

The square root of 238218433 is about 15434.3264511283. The cubic root of 238218433 is about 619.9049741634.

The spelling of 238218433 in words is "two hundred thirty-eight million, two hundred eighteen thousand, four hundred thirty-three".