228752812 has 12 divisors (see below), whose sum is σ = 414121680. Its totient is φ = 110432336.

The previous prime is 228752809. The next prime is 228752857. The reversal of 228752812 is 218257822.

It is a happy 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, 985888 + ... + 986119.

It is an arithmetic number, because the mean of its divisors is an integer number (34510140).

Almost surely, 2^228752812 is an apocalyptic number.

It is an amenable number.

228752812 is a deficient number, since it is larger than the sum of its proper divisors (185368868).

228752812 is a wasteful number, since it uses less digits than its factorization.

228752812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972040 (or 1972038 counting only the distinct ones).

The product of its digits is 35840, while the sum is 37.

The square root of 228752812 is about 15124.5764238209. The cubic root of 228752812 is about 611.5831063685.

The spelling of 228752812 in words is "two hundred twenty-eight million, seven hundred fifty-two thousand, eight hundred twelve".