228506205 has 8 divisors (see below), whose sum is σ = 365609952. Its totient is φ = 121869968.

The previous prime is 228506189. The next prime is 228506261. The reversal of 228506205 is 502605822.

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

It is a cyclic number.

It is not a de Polignac number, because 228506205 - 2⁴ = 228506189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7616859 + ... + 7616888.

It is an arithmetic number, because the mean of its divisors is an integer number (45701244).

Almost surely, 2^228506205 is an apocalyptic number.

It is an amenable number.

228506205 is a deficient number, since it is larger than the sum of its proper divisors (137103747).

228506205 is a wasteful number, since it uses less digits than its factorization.

228506205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15233755.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 228506205 is about 15116.4216995954. The cubic root of 228506205 is about 611.3632549291.

The spelling of 228506205 in words is "two hundred twenty-eight million, five hundred six thousand, two hundred five".