238305136 has 10 divisors (see below), whose sum is σ = 461716232. Its totient is φ = 119152560.

The previous prime is 238305127. The next prime is 238305241. The reversal of 238305136 is 631503832.

It is a junction number, because it is equal to n+sod(n) for n = 238305098 and 238305107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7447020 + ... + 7447051.

Almost surely, 2^238305136 is an apocalyptic number.

It is an amenable number.

238305136 is a deficient number, since it is larger than the sum of its proper divisors (223411096).

238305136 is a wasteful number, since it uses less digits than its factorization.

238305136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14894079 (or 14894073 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 238305136 is about 15437.1349673442. The cubic root of 238305136 is about 619.9801727964.

Adding to 238305136 its reverse (631503832), we get a palindrome (869808968).

The spelling of 238305136 in words is "two hundred thirty-eight million, three hundred five thousand, one hundred thirty-six".