228317018 has 8 divisors (see below), whose sum is σ = 345090240. Its totient is φ = 113286940.

The previous prime is 228317017. The next prime is 228317059. The reversal of 228317018 is 810713822.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (228317017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 435458 + ... + 435981.

It is an arithmetic number, because the mean of its divisors is an integer number (43136280).

Almost surely, 2^228317018 is an apocalyptic number.

228317018 is a deficient number, since it is larger than the sum of its proper divisors (116773222).

228317018 is a wasteful number, since it uses less digits than its factorization.

228317018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871572.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 228317018 is about 15110.1627390310. The cubic root of 228317018 is about 611.1944864781.

The spelling of 228317018 in words is "two hundred twenty-eight million, three hundred seventeen thousand, eighteen".