228242327 has 4 divisors (see below), whose sum is σ = 232548840. Its totient is φ = 223935816.

The previous prime is 228242321. The next prime is 228242347. The reversal of 228242327 is 723242822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228242327 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228242293 and 228242302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228242321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2153177 + ... + 2153282.

It is an arithmetic number, because the mean of its divisors is an integer number (58137210).

Almost surely, 2^228242327 is an apocalyptic number.

228242327 is a deficient number, since it is larger than the sum of its proper divisors (4306513).

228242327 is an equidigital number, since it uses as much as digits as its factorization.

228242327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4306512.

The product of its digits is 21504, while the sum is 32.

The square root of 228242327 is about 15107.6909883675. The cubic root of 228242327 is about 611.1278310491.

Subtracting from 228242327 its sum of digits (32), we obtain a triangular number (228242295 = T₂₁₃₆₅).

The spelling of 228242327 in words is "two hundred twenty-eight million, two hundred forty-two thousand, three hundred twenty-seven".