239218845 has 8 divisors (see below), whose sum is σ = 382750176. Its totient is φ = 127583376.

The previous prime is 239218843. The next prime is 239218867. The reversal of 239218845 is 548812932.

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

It is not a de Polignac number, because 239218845 - 2¹ = 239218843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 239218797 and 239218806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239218841) 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, 7973947 + ... + 7973976.

It is an arithmetic number, because the mean of its divisors is an integer number (47843772).

Almost surely, 2^239218845 is an apocalyptic number.

It is an amenable number.

239218845 is a deficient number, since it is larger than the sum of its proper divisors (143531331).

239218845 is a wasteful number, since it uses less digits than its factorization.

239218845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15947931.

The product of its digits is 138240, while the sum is 42.

The square root of 239218845 is about 15466.7011673466. The cubic root of 239218845 is about 620.7715377537.

The spelling of 239218845 in words is "two hundred thirty-nine million, two hundred eighteen thousand, eight hundred forty-five".