228318727 has 16 divisors (see below), whose sum is σ = 281666560. Its totient is φ = 180224352.

The previous prime is 228318719. The next prime is 228318743. The reversal of 228318727 is 727813822.

It is not a de Polignac number, because 228318727 - 2³ = 228318719 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228318727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228318757) 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 15 ways as a sum of consecutive naturals, for example, 39424 + ... + 44842.

It is an arithmetic number, because the mean of its divisors is an integer number (17604160).

Almost surely, 2^228318727 is an apocalyptic number.

228318727 is a deficient number, since it is larger than the sum of its proper divisors (53347833).

228318727 is a wasteful number, since it uses less digits than its factorization.

228318727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5902.

The product of its digits is 75264, while the sum is 40.

The square root of 228318727 is about 15110.2192902684. The cubic root of 228318727 is about 611.1960114466.

The spelling of 228318727 in words is "two hundred twenty-eight million, three hundred eighteen thousand, seven hundred twenty-seven".