238640034 has 8 divisors (see below), whose sum is σ = 477280080. Its totient is φ = 79546676.

The previous prime is 238640029. The next prime is 238640041. The reversal of 238640034 is 430046832.

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

238640034 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 238639983 and 238640010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19886664 + ... + 19886675.

It is an arithmetic number, because the mean of its divisors is an integer number (59660010).

Almost surely, 2^238640034 is an apocalyptic number.

238640034 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

238640034 is a wasteful number, since it uses less digits than its factorization.

238640034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39773344.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 238640034 is about 15447.9783143297. The cubic root of 238640034 is about 620.2704629906.

Adding to 238640034 its reverse (430046832), we get a palindrome (668686866).

The spelling of 238640034 in words is "two hundred thirty-eight million, six hundred forty thousand, thirty-four".