228508283 has 4 divisors (see below), whose sum is σ = 228569160. Its totient is φ = 228447408.

The previous prime is 228508279. The next prime is 228508303. The reversal of 228508283 is 382805822.

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 228508283 - 2² = 228508279 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228508583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24410 + ... + 32447.

It is an arithmetic number, because the mean of its divisors is an integer number (57142290).

Almost surely, 2^228508283 is an apocalyptic number.

228508283 is a deficient number, since it is larger than the sum of its proper divisors (60877).

228508283 is an equidigital number, since it uses as much as digits as its factorization.

228508283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60876.

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 228508283 is about 15116.4904326368. The cubic root of 228508283 is about 611.3651081377.

It can be divided in two parts, 22 and 8508283, that multiplied together give a triangular number (187182226 = T₁₉₃₄₈).

The spelling of 228508283 in words is "two hundred twenty-eight million, five hundred eight thousand, two hundred eighty-three".