228684229 has 4 divisors (see below), whose sum is σ = 228807180. Its totient is φ = 228561280.

The previous prime is 228684217. The next prime is 228684271. The reversal of 228684229 is 922486822.

228684229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 139287204 + 89397025 = 11802^2 + 9455^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228684229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228685229) 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, 58642 + ... + 62419.

It is an arithmetic number, because the mean of its divisors is an integer number (57201795).

Almost surely, 2^228684229 is an apocalyptic number.

It is an amenable number.

228684229 is a deficient number, since it is larger than the sum of its proper divisors (122951).

228684229 is a wasteful number, since it uses less digits than its factorization.

228684229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122950.

The product of its digits is 221184, while the sum is 43.

The square root of 228684229 is about 15122.3089837498. The cubic root of 228684229 is about 611.5219801303.

The spelling of 228684229 in words is "two hundred twenty-eight million, six hundred eighty-four thousand, two hundred twenty-nine".