226288066 has 4 divisors (see below), whose sum is σ = 339432102. Its totient is φ = 113144032.

The previous prime is 226288057. The next prime is 226288067. The reversal of 226288066 is 660882622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 660882622 = 2 ⋅330441311.

It can be written as a sum of positive squares in only one way, i.e., 213890625 + 12397441 = 14625^2 + 3521^2 .

It is not an unprimeable number, because it can be changed into a prime (226288067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56572015 + ... + 56572018.

Almost surely, 2^226288066 is an apocalyptic number.

226288066 is a deficient number, since it is larger than the sum of its proper divisors (113144036).

226288066 is a wasteful number, since it uses less digits than its factorization.

226288066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113144035.

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 226288066 is about 15042.8742599279. The cubic root of 226288066 is about 609.3786255178.

The spelling of 226288066 in words is "two hundred twenty-six million, two hundred eighty-eight thousand, sixty-six".