228787338 has 16 divisors (see below), whose sum is σ = 492772896. Its totient is φ = 70396080.

The previous prime is 228787337. The next prime is 228787357. The reversal of 228787338 is 833787822.

It is not an unprimeable number, because it can be changed into a prime (228787331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1466508 + ... + 1466663.

It is an arithmetic number, because the mean of its divisors is an integer number (30798306).

Almost surely, 2^228787338 is an apocalyptic number.

228787338 is an abundant number, since it is smaller than the sum of its proper divisors (263985558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228787338 is a wasteful number, since it uses less digits than its factorization.

228787338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2933189.

The product of its digits is 903168, while the sum is 48.

The square root of 228787338 is about 15125.7177680929. The cubic root of 228787338 is about 611.6138738681.

The spelling of 228787338 in words is "two hundred twenty-eight million, seven hundred eighty-seven thousand, three hundred thirty-eight".