228755826 has 88 divisors (see below), whose sum is σ = 558009900. Its totient is φ = 69914016.

The previous prime is 228755777. The next prime is 228755827. The reversal of 228755826 is 628557822.

It can be written as a sum of positive squares in 2 ways, for example, as 191850201 + 36905625 = 13851^2 + 6075^2 .

It is not an unprimeable number, because it can be changed into a prime (228755827) 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 43 ways as a sum of consecutive naturals, for example, 1535200 + ... + 1535348.

Almost surely, 2^228755826 is an apocalyptic number.

228755826 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 228755826, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279004950).

228755826 is an abundant number, since it is smaller than the sum of its proper divisors (329254074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228755826 is an equidigital number, since it uses as much as digits as its factorization.

228755826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194 (or 167 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 228755826 is about 15124.6760626468. The cubic root of 228755826 is about 611.5857923878.

The spelling of 228755826 in words is "two hundred twenty-eight million, seven hundred fifty-five thousand, eight hundred twenty-six".