228344838 has 16 divisors (see below), whose sum is σ = 464177136. Its totient is φ = 74867040.

The previous prime is 228344813. The next prime is 228344843. The reversal of 228344838 is 838443822.

It is a self number, because there is not a number n which added to its sum of digits gives 228344838.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311581 + ... + 312312.

It is an arithmetic number, because the mean of its divisors is an integer number (29011071).

Almost surely, 2^228344838 is an apocalyptic number.

228344838 is an abundant number, since it is smaller than the sum of its proper divisors (235832298).

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

228344838 is a wasteful number, since it uses less digits than its factorization.

228344838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623959.

The product of its digits is 294912, while the sum is 42.

The square root of 228344838 is about 15111.0832834711. The cubic root of 228344838 is about 611.2193097701.

It can be divided in two parts, 22834 and 4838, that added together give a palindrome (27672).

The spelling of 228344838 in words is "two hundred twenty-eight million, three hundred forty-four thousand, eight hundred thirty-eight".