228270012 has 12 divisors (see below), whose sum is σ = 532630056. Its totient is φ = 76090000.

The previous prime is 228269981. The next prime is 228270037. The reversal of 228270012 is 210072822.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9511239 + ... + 9511262.

It is an arithmetic number, because the mean of its divisors is an integer number (44385838).

Almost surely, 2^228270012 is an apocalyptic number.

It is an amenable number.

228270012 is an abundant number, since it is smaller than the sum of its proper divisors (304360044).

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

228270012 is a wasteful number, since it uses less digits than its factorization.

228270012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19022508 (or 19022506 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 228270012 is about 15108.6072157562. The cubic root of 228270012 is about 611.1525392766.

The spelling of 228270012 in words is "two hundred twenty-eight million, two hundred seventy thousand, twelve".