228570269 has 4 divisors (see below), whose sum is σ = 228611196. Its totient is φ = 228529344.

The previous prime is 228570263. The next prime is 228570283. The reversal of 228570269 is 962075822.

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

It can be written as a sum of positive squares in 2 ways, for example, as 22992025 + 205578244 = 4795^2 + 14338^2 .

It is a cyclic number.

It is not a de Polignac number, because 228570269 - 2¹⁶ = 228504733 is a prime.

It is a super-2 number, since 2×228570269² = 104488735741464722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228570263) 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, 10454 + ... + 23799.

It is an arithmetic number, because the mean of its divisors is an integer number (57152799).

Almost surely, 2^228570269 is an apocalyptic number.

It is an amenable number.

228570269 is a deficient number, since it is larger than the sum of its proper divisors (40927).

228570269 is an equidigital number, since it uses as much as digits as its factorization.

228570269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40926.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 228570269 is about 15118.5405711001. The cubic root of 228570269 is about 611.4203835249.

The spelling of 228570269 in words is "two hundred twenty-eight million, five hundred seventy thousand, two hundred sixty-nine".