228838247 has 8 divisors (see below), whose sum is σ = 260496000. Its totient is φ = 198989560.

The previous prime is 228838243. The next prime is 228838271. The reversal of 228838247 is 742838822.

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

It is not a de Polignac number, because 228838247 - 2² = 228838243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228838198 and 228838207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228838243) 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 7 ways as a sum of consecutive naturals, for example, 451997 + ... + 452502.

It is an arithmetic number, because the mean of its divisors is an integer number (32562000).

Almost surely, 2^228838247 is an apocalyptic number.

228838247 is a deficient number, since it is larger than the sum of its proper divisors (31657753).

228838247 is a wasteful number, since it uses less digits than its factorization.

228838247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904533.

The product of its digits is 344064, while the sum is 44.

The square root of 228838247 is about 15127.4005367743. The cubic root of 228838247 is about 611.6592352675.

The spelling of 228838247 in words is "two hundred twenty-eight million, eight hundred thirty-eight thousand, two hundred forty-seven".