226815238 has 24 divisors (see below), whose sum is σ = 369362808. Its totient is φ = 104412672.

The previous prime is 226815233. The next prime is 226815299. The reversal of 226815238 is 832518622.

It is a super-3 number, since 3×226815238³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 226815197 and 226815206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226815233) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 194445 + ... + 195607.

It is an arithmetic number, because the mean of its divisors is an integer number (15390117).

Almost surely, 2^226815238 is an apocalyptic number.

226815238 is a deficient number, since it is larger than the sum of its proper divisors (142547570).

226815238 is a wasteful number, since it uses less digits than its factorization.

226815238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768 (or 1755 counting only the distinct ones).

The product of its digits is 46080, while the sum is 37.

The square root of 226815238 is about 15060.3863828256. The cubic root of 226815238 is about 609.8514714971.

The spelling of 226815238 in words is "two hundred twenty-six million, eight hundred fifteen thousand, two hundred thirty-eight".