228053238 has 32 divisors (see below), whose sum is σ = 548701440. Its totient is φ = 61728480.

The previous prime is 228053213. The next prime is 228053251. The reversal of 228053238 is 832350822.

It is a super-4 number, since 4×228053238⁴ (a number of 35 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 228053199 and 228053208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142093 + ... + 143688.

It is an arithmetic number, because the mean of its divisors is an integer number (17146920).

Almost surely, 2^228053238 is an apocalyptic number.

228053238 is an abundant number, since it is smaller than the sum of its proper divisors (320648202).

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

228053238 is a wasteful number, since it uses less digits than its factorization.

228053238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285812.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 228053238 is about 15101.4316539857. The cubic root of 228053238 is about 610.9590200049.

The spelling of 228053238 in words is "two hundred twenty-eight million, fifty-three thousand, two hundred thirty-eight".