238828355 has 4 divisors (see below), whose sum is σ = 286594032. Its totient is φ = 191062680.

The previous prime is 238828351. The next prime is 238828357. The reversal of 238828355 is 553828832.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 238828355 - 2² = 238828351 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238828351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23882831 + ... + 23882840.

It is an arithmetic number, because the mean of its divisors is an integer number (71648508).

Almost surely, 2^238828355 is an apocalyptic number.

238828355 is a deficient number, since it is larger than the sum of its proper divisors (47765677).

238828355 is an equidigital number, since it uses as much as digits as its factorization.

238828355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47765676.

The product of its digits is 460800, while the sum is 44.

The square root of 238828355 is about 15454.0724406222. The cubic root of 238828355 is about 620.4335806911.

The spelling of 238828355 in words is "two hundred thirty-eight million, eight hundred twenty-eight thousand, three hundred fifty-five".