228999012006 has 32 divisors (see below), whose sum is σ = 485019353088. Its totient is φ = 71830935680.

The previous prime is 228999011999. The next prime is 228999012007. The reversal of 228999012006 is 600210999822.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228999012007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 443851 + ... + 809321.

It is an arithmetic number, because the mean of its divisors is an integer number (15156854784).

Almost surely, 2^228999012006 is an apocalyptic number.

228999012006 is an abundant number, since it is smaller than the sum of its proper divisors (256020341082).

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

228999012006 is a wasteful number, since it uses less digits than its factorization.

228999012006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371636.

The product of its (nonzero) digits is 279936, while the sum is 48.

The spelling of 228999012006 in words is "two hundred twenty-eight billion, nine hundred ninety-nine million, twelve thousand, six".