228117769 has 16 divisors (see below), whose sum is σ = 252720000. Its totient is φ = 204181120.

The previous prime is 228117763. The next prime is 228117803. The reversal of 228117769 is 967711822.

It is not a de Polignac number, because 228117769 - 2⁹ = 228117257 is a prime.

It is a super-2 number, since 2×228117769² = 104075433067074722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228117763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 380532 + ... + 381130.

It is an arithmetic number, because the mean of its divisors is an integer number (15795000).

Almost surely, 2^228117769 is an apocalyptic number.

It is an amenable number.

228117769 is a deficient number, since it is larger than the sum of its proper divisors (24602231).

228117769 is a wasteful number, since it uses less digits than its factorization.

228117769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088.

The product of its digits is 84672, while the sum is 43.

The square root of 228117769 is about 15103.5680883691. The cubic root of 228117769 is about 611.0166411680.

The spelling of 228117769 in words is "two hundred twenty-eight million, one hundred seventeen thousand, seven hundred sixty-nine".