228318718 has 4 divisors (see below), whose sum is σ = 342478080. Its totient is φ = 114159358.

The previous prime is 228318679. The next prime is 228318719. The reversal of 228318718 is 817813822.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228318719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57079678 + ... + 57079681.

It is an arithmetic number, because the mean of its divisors is an integer number (85619520).

Almost surely, 2^228318718 is an apocalyptic number.

228318718 is a deficient number, since it is larger than the sum of its proper divisors (114159362).

228318718 is a wasteful number, since it uses less digits than its factorization.

228318718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114159361.

The product of its digits is 43008, while the sum is 40.

The square root of 228318718 is about 15110.2189924567. The cubic root of 228318718 is about 611.1960034157.

The spelling of 228318718 in words is "two hundred twenty-eight million, three hundred eighteen thousand, seven hundred eighteen".