226172018 has 16 divisors (see below), whose sum is σ = 359816256. Its totient is φ = 106394640.

The previous prime is 226172003. The next prime is 226172021. The reversal of 226172018 is 810271622.

It is a super-3 number, since 3×226172018³ (a number of 26 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37496 + ... + 43107.

It is an arithmetic number, because the mean of its divisors is an integer number (22488516).

Almost surely, 2^226172018 is an apocalyptic number.

226172018 is a deficient number, since it is larger than the sum of its proper divisors (133644238).

226172018 is a wasteful number, since it uses less digits than its factorization.

226172018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80689.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 226172018 is about 15039.0165236960. The cubic root of 226172018 is about 609.2744378716.

The spelling of 226172018 in words is "two hundred twenty-six million, one hundred seventy-two thousand, eighteen".