228373238 has 4 divisors (see below), whose sum is σ = 342559860. Its totient is φ = 114186618.

The previous prime is 228373219. The next prime is 228373253. The reversal of 228373238 is 832373822.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 57093308 + ... + 57093311.

It is an arithmetic number, because the mean of its divisors is an integer number (85639965).

Almost surely, 2^228373238 is an apocalyptic number.

228373238 is a deficient number, since it is larger than the sum of its proper divisors (114186622).

228373238 is a wasteful number, since it uses less digits than its factorization.

228373238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114186621.

The product of its digits is 96768, while the sum is 38.

The square root of 228373238 is about 15112.0229618672. The cubic root of 228373238 is about 611.2446485063.

The spelling of 228373238 in words is "two hundred twenty-eight million, three hundred seventy-three thousand, two hundred thirty-eight".