228338955 has 24 divisors (see below), whose sum is σ = 426233808. Its totient is φ = 112412736.

The previous prime is 228338947. The next prime is 228338969. The reversal of 228338955 is 559833822.

228338955 is a `hidden beast` number, since 228 + 338 + 95 + 5 = 666.

228338955 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 228338955 - 2³ = 228338947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 228338955.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 194577 + ... + 195746.

It is an arithmetic number, because the mean of its divisors is an integer number (17759742).

Almost surely, 2^228338955 is an apocalyptic number.

228338955 is a deficient number, since it is larger than the sum of its proper divisors (197894853).

228338955 is a wasteful number, since it uses less digits than its factorization.

228338955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390347 (or 390344 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 228338955 is about 15110.8886237706. Note that the first 3 decimals coincide. The cubic root of 228338955 is about 611.2140606418.

The spelling of 228338955 in words is "two hundred twenty-eight million, three hundred thirty-eight thousand, nine hundred fifty-five".