228343263 has 4 divisors (see below), whose sum is σ = 304457688. Its totient is φ = 152228840.

The previous prime is 228343261. The next prime is 228343267. The reversal of 228343263 is 362343822.

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

It is a cyclic number.

It is not a de Polignac number, because 228343263 - 2¹ = 228343261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228343261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38057208 + ... + 38057213.

It is an arithmetic number, because the mean of its divisors is an integer number (76114422).

Almost surely, 2^228343263 is an apocalyptic number.

228343263 is a deficient number, since it is larger than the sum of its proper divisors (76114425).

228343263 is an equidigital number, since it uses as much as digits as its factorization.

228343263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76114424.

The product of its digits is 41472, while the sum is 33.

The square root of 228343263 is about 15111.0311693147. The cubic root of 228343263 is about 611.2179044794.

The spelling of 228343263 in words is "two hundred twenty-eight million, three hundred forty-three thousand, two hundred sixty-three".