226516018 has 4 divisors (see below), whose sum is σ = 339774030. Its totient is φ = 113258008.

The previous prime is 226515953. The next prime is 226516027. The reversal of 226516018 is 810615622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 810615622 = 2 ⋅405307811.

It can be written as a sum of positive squares in only one way, i.e., 215003569 + 11512449 = 14663^2 + 3393^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 as a sum of consecutive naturals, namely, 56629003 + ... + 56629006.

Almost surely, 2^226516018 is an apocalyptic number.

226516018 is a deficient number, since it is larger than the sum of its proper divisors (113258012).

226516018 is a wasteful number, since it uses less digits than its factorization.

226516018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113258011.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 226516018 is about 15050.4490962895. The cubic root of 226516018 is about 609.5831766775.

The spelling of 226516018 in words is "two hundred twenty-six million, five hundred sixteen thousand, eighteen".