228812635 has 4 divisors (see below), whose sum is σ = 274575168. Its totient is φ = 183050104.

The previous prime is 228812603. The next prime is 228812641. The reversal of 228812635 is 536218822.

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 228812635 - 2⁵ = 228812603 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228812594 and 228812603.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22881259 + ... + 22881268.

It is an arithmetic number, because the mean of its divisors is an integer number (68643792).

Almost surely, 2^228812635 is an apocalyptic number.

228812635 is a deficient number, since it is larger than the sum of its proper divisors (45762533).

228812635 is an equidigital number, since it uses as much as digits as its factorization.

228812635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45762532.

The product of its digits is 46080, while the sum is 37.

The square root of 228812635 is about 15126.5539697580. The cubic root of 228812635 is about 611.6364150717.

The spelling of 228812635 in words is "two hundred twenty-eight million, eight hundred twelve thousand, six hundred thirty-five".