228077658 has 24 divisors (see below), whose sum is σ = 502271796. Its totient is φ = 74779200.

The previous prime is 228077651. The next prime is 228077671. The reversal of 228077658 is 856770822.

228077658 is digitally balanced in base 3, 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 217946169 + 10131489 = 14763^2 + 3183^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (228077651) 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, 102763 + ... + 104958.

Almost surely, 2^228077658 is an apocalyptic number.

228077658 is an abundant number, since it is smaller than the sum of its proper divisors (274194138).

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

228077658 is a wasteful number, since it uses less digits than its factorization.

228077658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207790 (or 207787 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 228077658 is about 15102.2401649557. The cubic root of 228077658 is about 610.9808264435.

The spelling of 228077658 in words is "two hundred twenty-eight million, seventy-seven thousand, six hundred fifty-eight".