228166365 has 16 divisors (see below), whose sum is σ = 417218688. Its totient is φ = 104304576.

The previous prime is 228166361. The next prime is 228166397. The reversal of 228166365 is 563661822.

It is not a de Polignac number, because 228166365 - 2² = 228166361 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228166361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1086402 + ... + 1086611.

It is an arithmetic number, because the mean of its divisors is an integer number (26076168).

Almost surely, 2^228166365 is an apocalyptic number.

It is an amenable number.

228166365 is a deficient number, since it is larger than the sum of its proper divisors (189052323).

228166365 is a wasteful number, since it uses less digits than its factorization.

228166365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2173028.

The product of its digits is 103680, while the sum is 39.

The square root of 228166365 is about 15105.1767616271. The cubic root of 228166365 is about 611.0600264430.

The spelling of 228166365 in words is "two hundred twenty-eight million, one hundred sixty-six thousand, three hundred sixty-five".