228716658 has 24 divisors (see below), whose sum is σ = 498715308. Its totient is φ = 75752352.

The previous prime is 228716629. The next prime is 228716659. The reversal of 228716658 is 856617822.

228716658 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 223113969 + 5602689 = 14937^2 + 2367^2 .

It is a super-2 number, since 2×228716658² = 104622619293377928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (228716659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37641 + ... + 43292.

Almost surely, 2^228716658 is an apocalyptic number.

228716658 is an abundant number, since it is smaller than the sum of its proper divisors (269998650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228716658 is a wasteful number, since it uses less digits than its factorization.

228716658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81098 (or 81095 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 228716658 is about 15123.3811695665. The cubic root of 228716658 is about 611.5508847747.

The spelling of 228716658 in words is "two hundred twenty-eight million, seven hundred sixteen thousand, six hundred fifty-eight".