228801828 has 24 divisors (see below), whose sum is σ = 545231232. Its totient is φ = 74644384.

The previous prime is 228801817. The next prime is 228801871. The reversal of 228801828 is 828108822.

228801828 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×228801828⁴ (a number of 35 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202275 + ... + 203402.

It is an arithmetic number, because the mean of its divisors is an integer number (22717968).

Almost surely, 2^228801828 is an apocalyptic number.

It is an amenable number.

228801828 is an abundant number, since it is smaller than the sum of its proper divisors (316429404).

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

228801828 is a wasteful number, since it uses less digits than its factorization.

228801828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405731 (or 405729 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 39.

The square root of 228801828 is about 15126.1967460429. The cubic root of 228801828 is about 611.6267855644.

The spelling of 228801828 in words is "two hundred twenty-eight million, eight hundred one thousand, eight hundred twenty-eight".