228228535 has 8 divisors (see below), whose sum is σ = 274344336. Its totient is φ = 182269440.

The previous prime is 228228529. The next prime is 228228571. The reversal of 228228535 is 535822822.

It is a happy number.

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

It is not a de Polignac number, because 228228535 - 2¹¹ = 228226487 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228228494 and 228228503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35946 + ... + 41815.

It is an arithmetic number, because the mean of its divisors is an integer number (34293042).

Almost surely, 2^228228535 is an apocalyptic number.

228228535 is a deficient number, since it is larger than the sum of its proper divisors (46115801).

228228535 is an equidigital number, since it uses as much as digits as its factorization.

228228535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78353.

The product of its digits is 76800, while the sum is 37.

The square root of 228228535 is about 15107.2345252200. The cubic root of 228228535 is about 611.1155212599.

The spelling of 228228535 in words is "two hundred twenty-eight million, two hundred twenty-eight thousand, five hundred thirty-five".