228318686 has 8 divisors (see below), whose sum is σ = 342711000. Its totient is φ = 114081688.

The previous prime is 228318679. The next prime is 228318719. The reversal of 228318686 is 686813822.

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, 35081 + ... + 41076.

It is an arithmetic number, because the mean of its divisors is an integer number (42838875).

Almost surely, 2^228318686 is an apocalyptic number.

228318686 is a deficient number, since it is larger than the sum of its proper divisors (114392314).

228318686 is a wasteful number, since it uses less digits than its factorization.

228318686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77658.

The product of its digits is 221184, while the sum is 44.

The square root of 228318686 is about 15110.2179335706. The cubic root of 228318686 is about 611.1959748617.

The spelling of 228318686 in words is "two hundred twenty-eight million, three hundred eighteen thousand, six hundred eighty-six".