228318923 has 8 divisors (see below), whose sum is σ = 261050592. Its totient is φ = 195615936.

The previous prime is 228318919. The next prime is 228318929. The reversal of 228318923 is 329813822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 228318923 - 2² = 228318919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228318929) 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 7 ways as a sum of consecutive naturals, for example, 14111 + ... + 25607.

It is an arithmetic number, because the mean of its divisors is an integer number (32631324).

Almost surely, 2^228318923 is an apocalyptic number.

228318923 is a deficient number, since it is larger than the sum of its proper divisors (32731669).

228318923 is a wasteful number, since it uses less digits than its factorization.

228318923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14341.

The product of its digits is 41472, while the sum is 38.

The square root of 228318923 is about 15110.2257759439. The cubic root of 228318923 is about 611.1961863401.

The spelling of 228318923 in words is "two hundred twenty-eight million, three hundred eighteen thousand, nine hundred twenty-three".