228351871 has 16 divisors (see below), whose sum is σ = 266505120. Its totient is φ = 193351680.

The previous prime is 228351857. The next prime is 228351913. The reversal of 228351871 is 178153822.

It is a cyclic number.

It is not a de Polignac number, because 228351871 - 2⁹ = 228351359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 228351871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228351271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11845 + ... + 24433.

It is an arithmetic number, because the mean of its divisors is an integer number (16656570).

Almost surely, 2^228351871 is an apocalyptic number.

228351871 is a deficient number, since it is larger than the sum of its proper divisors (38153249).

228351871 is a wasteful number, since it uses less digits than its factorization.

228351871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12714.

The product of its digits is 26880, while the sum is 37.

The square root of 228351871 is about 15111.3159916666. The cubic root of 228351871 is about 611.2255848719.

The spelling of 228351871 in words is "two hundred twenty-eight million, three hundred fifty-one thousand, eight hundred seventy-one".