228663718 has 8 divisors (see below), whose sum is σ = 343389312. Its totient is φ = 114200616.

The previous prime is 228663709. The next prime is 228663751. The reversal of 228663718 is 817366822.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63430 + ... + 66937.

It is an arithmetic number, because the mean of its divisors is an integer number (42923664).

Almost surely, 2^228663718 is an apocalyptic number.

228663718 is a deficient number, since it is larger than the sum of its proper divisors (114725594).

228663718 is a wasteful number, since it uses less digits than its factorization.

228663718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131246.

The product of its digits is 193536, while the sum is 43.

The square root of 228663718 is about 15121.6307982969. The cubic root of 228663718 is about 611.5036968372.

The spelling of 228663718 in words is "two hundred twenty-eight million, six hundred sixty-three thousand, seven hundred eighteen".