228657169 has 16 divisors (see below), whose sum is σ = 249424000. Its totient is φ = 209605968.

The previous prime is 228657167. The next prime is 228657173. The reversal of 228657169 is 961756822.

It is not a de Polignac number, because 228657169 - 2¹ = 228657167 is a prime.

It is a super-2 number, since 2×228657169² = 104568201870189122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228657161) 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, 436942 + ... + 437464.

It is an arithmetic number, because the mean of its divisors is an integer number (15589000).

Almost surely, 2^228657169 is an apocalyptic number.

It is an amenable number.

228657169 is a deficient number, since it is larger than the sum of its proper divisors (20766831).

228657169 is an equidigital number, since it uses as much as digits as its factorization.

228657169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761 (or 735 counting only the distinct ones).

The product of its digits is 362880, while the sum is 46.

The square root of 228657169 is about 15121.4142526418. The cubic root of 228657169 is about 611.4978588961.

It can be divided in two parts, 228657 and 169, that added together give a triangular number (228826 = T₆₇₆).

The spelling of 228657169 in words is "two hundred twenty-eight million, six hundred fifty-seven thousand, one hundred sixty-nine".