238813765 has 8 divisors (see below), whose sum is σ = 287511840. Its totient is φ = 190427472.

The previous prime is 238813747. The next prime is 238813847. The reversal of 238813765 is 567318832.

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-238813765 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76255 + ... + 79324.

It is an arithmetic number, because the mean of its divisors is an integer number (35938980).

Almost surely, 2^238813765 is an apocalyptic number.

It is an amenable number.

238813765 is a deficient number, since it is larger than the sum of its proper divisors (48698075).

238813765 is a wasteful number, since it uses less digits than its factorization.

238813765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155891.

The product of its digits is 241920, while the sum is 43.

The square root of 238813765 is about 15453.6003895532. The cubic root of 238813765 is about 620.4209463590.

The spelling of 238813765 in words is "two hundred thirty-eight million, eight hundred thirteen thousand, seven hundred sixty-five".