228176928 has 432 divisors, whose sum is σ = 851497920. Its totient is φ = 57480192.

The previous prime is 228176887. The next prime is 228176933. The reversal of 228176928 is 829671822.

It is a super-4 number, since 4×228176928⁴ (a number of 35 digits) contains 4444 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6166926 + ... + 6166962.

It is an arithmetic number, because the mean of its divisors is an integer number (1971060).

Almost surely, 2^228176928 is an apocalyptic number.

228176928 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228176928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (425748960).

228176928 is an abundant number, since it is smaller than the sum of its proper divisors (623320992).

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

228176928 is a wasteful number, since it uses less digits than its factorization.

228176928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 91 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 228176928 is about 15105.5264059218. The cubic root of 228176928 is about 611.0694560062.

The spelling of 228176928 in words is "two hundred twenty-eight million, one hundred seventy-six thousand, nine hundred twenty-eight".