228505367 has 4 divisors (see below), whose sum is σ = 231397920. Its totient is φ = 225612816.

The previous prime is 228505363. The next prime is 228505369. The reversal of 228505367 is 763505822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 228505367 - 2² = 228505363 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 228505367.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228505363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1446158 + ... + 1446315.

It is an arithmetic number, because the mean of its divisors is an integer number (57849480).

Almost surely, 2^228505367 is an apocalyptic number.

228505367 is a deficient number, since it is larger than the sum of its proper divisors (2892553).

228505367 is an equidigital number, since it uses as much as digits as its factorization.

228505367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2892552.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 228505367 is about 15116.3939813700. The cubic root of 228505367 is about 611.3625075780.

The spelling of 228505367 in words is "two hundred twenty-eight million, five hundred five thousand, three hundred sixty-seven".