999000228 has 48 divisors (see below), whose sum is σ = 2397911040. Its totient is φ = 323544864.

The previous prime is 999000173. The next prime is 999000271. The reversal of 999000228 is 822000999.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72025 + ... + 84767.

It is an arithmetic number, because the mean of its divisors is an integer number (49956480).

Almost surely, 2^999000228 is an apocalyptic number.

It is an amenable number.

999000228 is an abundant number, since it is smaller than the sum of its proper divisors (1398910812).

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

999000228 is a wasteful number, since it uses less digits than its factorization.

999000228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12936 (or 12934 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 999000228 is about 31606.9648653584. The cubic root of 999000228 is about 999.6666315445. Note that the first 4 decimals are identical.

The spelling of 999000228 in words is "nine hundred ninety-nine million, two hundred twenty-eight", and thus it is an aban number.