226686638 has 8 divisors (see below), whose sum is σ = 340905240. Its totient is φ = 113051560.

The previous prime is 226686637. The next prime is 226686659. The reversal of 226686638 is 836686622.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 226686592 and 226686601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226686637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144908 + ... + 146463.

It is an arithmetic number, because the mean of its divisors is an integer number (42613155).

Almost surely, 2^226686638 is an apocalyptic number.

226686638 is a deficient number, since it is larger than the sum of its proper divisors (114218602).

226686638 is a wasteful number, since it uses less digits than its factorization.

226686638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291762.

The product of its digits is 995328, while the sum is 47.

The square root of 226686638 is about 15056.1162987007. The cubic root of 226686638 is about 609.7361915791.

The spelling of 226686638 in words is "two hundred twenty-six million, six hundred eighty-six thousand, six hundred thirty-eight".