228506841 has 6 divisors (see below), whose sum is σ = 330065450. Its totient is φ = 152337888.

The previous prime is 228506833. The next prime is 228506851. The reversal of 228506841 is 148605822.

It can be written as a sum of positive squares in only one way, i.e., 219632400 + 8874441 = 14820^2 + 2979^2 .

It is not a de Polignac number, because 228506841 - 2³ = 228506833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228506796 and 228506805.

It is not an unprimeable number, because it can be changed into a prime (228506851) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12694816 + ... + 12694833.

Almost surely, 2^228506841 is an apocalyptic number.

It is an amenable number.

228506841 is a deficient number, since it is larger than the sum of its proper divisors (101558609).

228506841 is a wasteful number, since it uses less digits than its factorization.

228506841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25389655 (or 25389652 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 228506841 is about 15116.4427363054. The cubic root of 228506841 is about 611.3638221298.

The spelling of 228506841 in words is "two hundred twenty-eight million, five hundred six thousand, eight hundred forty-one".