228505376 has 48 divisors (see below), whose sum is σ = 498143520. Its totient is φ = 102305280.

The previous prime is 228505369. The next prime is 228505379. The reversal of 228505376 is 673505822.

It is not an unprimeable number, because it can be changed into a prime (228505379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18740 + ... + 28428.

It is an arithmetic number, because the mean of its divisors is an integer number (10377990).

Almost surely, 2^228505376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228505376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249071760).

228505376 is an abundant number, since it is smaller than the sum of its proper divisors (269638144).

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

228505376 is a wasteful number, since it uses less digits than its factorization.

228505376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9777 (or 9769 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 228505376 is about 15116.3942790601. The cubic root of 228505376 is about 611.3625156045.

The spelling of 228505376 in words is "two hundred twenty-eight million, five hundred five thousand, three hundred seventy-six".