228124040 has 32 divisors (see below), whose sum is σ = 529839360. Its totient is φ = 88305600.

The previous prime is 228124021. The next prime is 228124067. The reversal of 228124040 is 40421822.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 228123997 and 228124015.

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 7 ways as a sum of consecutive naturals, for example, 90746 + ... + 93225.

It is an arithmetic number, because the mean of its divisors is an integer number (16557480).

Almost surely, 2^228124040 is an apocalyptic number.

228124040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228124040 is an abundant number, since it is smaller than the sum of its proper divisors (301715320).

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

228124040 is a wasteful number, since it uses less digits than its factorization.

228124040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184013 (or 184009 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 228124040 is about 15103.7756868937. The cubic root of 228124040 is about 611.0222401038.

Adding to 228124040 its reverse (40421822), we get a palindrome (268545862).

The spelling of 228124040 in words is "two hundred twenty-eight million, one hundred twenty-four thousand, forty".