228211842 has 64 divisors (see below), whose sum is σ = 510416640. Its totient is φ = 67651584.

The previous prime is 228211783. The next prime is 228211889. The reversal of 228211842 is 248112822.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 208248 + ... + 209340.

It is an arithmetic number, because the mean of its divisors is an integer number (7975260).

Almost surely, 2^228211842 is an apocalyptic number.

228211842 is an abundant number, since it is smaller than the sum of its proper divisors (282204798).

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

228211842 is a wasteful number, since it uses less digits than its factorization.

228211842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227.

The product of its digits is 4096, while the sum is 30.

The square root of 228211842 is about 15106.6820314720. The cubic root of 228211842 is about 611.1006215745.

The spelling of 228211842 in words is "two hundred twenty-eight million, two hundred eleven thousand, eight hundred forty-two".