228136658 has 8 divisors (see below), whose sum is σ = 343285452. Its totient is φ = 113708176.

The previous prime is 228136627. The next prime is 228136681. The reversal of 228136658 is 856631822.

228136658 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 165045409 + 63091249 = 12847^2 + 7943^2 .

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

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, 179285 + ... + 180552.

Almost surely, 2^228136658 is an apocalyptic number.

228136658 is a deficient number, since it is larger than the sum of its proper divisors (115148794).

228136658 is a wasteful number, since it uses less digits than its factorization.

228136658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360156.

The product of its digits is 138240, while the sum is 41.

The square root of 228136658 is about 15104.1933912407. The cubic root of 228136658 is about 611.0335055196.

The spelling of 228136658 in words is "two hundred twenty-eight million, one hundred thirty-six thousand, six hundred fifty-eight".