226172188 has 12 divisors (see below), whose sum is σ = 431783352. Its totient is φ = 102805520.

The previous prime is 226172183. The next prime is 226172197. The reversal of 226172188 is 881271622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226172183) 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, 2570095 + ... + 2570182.

It is an arithmetic number, because the mean of its divisors is an integer number (35981946).

Almost surely, 2^226172188 is an apocalyptic number.

It is an amenable number.

226172188 is a deficient number, since it is larger than the sum of its proper divisors (205611164).

226172188 is a wasteful number, since it uses less digits than its factorization.

226172188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5140292 (or 5140290 counting only the distinct ones).

The product of its digits is 21504, while the sum is 37.

The square root of 226172188 is about 15039.0221756602. The cubic root of 226172188 is about 609.2745905233.

The spelling of 226172188 in words is "two hundred twenty-six million, one hundred seventy-two thousand, one hundred eighty-eight".