228847212 has 36 divisors (see below), whose sum is σ = 631064616. Its totient is φ = 69347520.

The previous prime is 228847211. The next prime is 228847219. The reversal of 228847212 is 212748822.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (228847211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 288553 + ... + 289344.

Almost surely, 2^228847212 is an apocalyptic number.

228847212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

228847212 is an abundant number, since it is smaller than the sum of its proper divisors (402217404).

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

228847212 is a wasteful number, since it uses less digits than its factorization.

228847212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577918 (or 577913 counting only the distinct ones).

The product of its digits is 28672, while the sum is 36.

The square root of 228847212 is about 15127.6968504793. The cubic root of 228847212 is about 611.6672226466.

The spelling of 228847212 in words is "two hundred twenty-eight million, eight hundred forty-seven thousand, two hundred twelve".