238418438386 has 8 divisors (see below), whose sum is σ = 367293270060. Its totient is φ = 115987348368.

The previous prime is 238418438381. The next prime is 238418438393. The reversal of 238418438386 is 683834814832.

It is a happy number.

238418438386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 236998580625 + 1419857761 = 486825^2 + 37681^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 238418438386.

It is not an unprimeable number, because it can be changed into a prime (238418438381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1610935321 + ... + 1610935468.

Almost surely, 2^238418438386 is an apocalyptic number.

238418438386 is a deficient number, since it is larger than the sum of its proper divisors (128874831674).

238418438386 is a wasteful number, since it uses less digits than its factorization.

238418438386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3221870828.

The product of its digits is 21233664, while the sum is 58.

The spelling of 238418438386 in words is "two hundred thirty-eight billion, four hundred eighteen million, four hundred thirty-eight thousand, three hundred eighty-six".