238782239 has 4 divisors (see below), whose sum is σ = 238815480. Its totient is φ = 238749000.

The previous prime is 238782233. The next prime is 238782287. The reversal of 238782239 is 932287832.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 238782239 - 2¹² = 238778143 is a prime.

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 238782239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238782233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 869 + ... + 21870.

It is an arithmetic number, because the mean of its divisors is an integer number (59703870).

Almost surely, 2^238782239 is an apocalyptic number.

238782239 is a deficient number, since it is larger than the sum of its proper divisors (33241).

238782239 is a wasteful number, since it uses less digits than its factorization.

238782239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33240.

The product of its digits is 290304, while the sum is 44.

The square root of 238782239 is about 15452.5803346884. The cubic root of 238782239 is about 620.3936443991.

The spelling of 238782239 in words is "two hundred thirty-eight million, seven hundred eighty-two thousand, two hundred thirty-nine".