228069 has 8 divisors (see below), whose sum is σ = 337920. Its totient is φ = 152028.

The previous prime is 228061. The next prime is 228077. The reversal of 228069 is 960822.

It is an interprime number because it is at equal distance from previous prime (228061) and next prime (228077).

It is not a de Polignac number, because 228069 - 2³ = 228061 is a prime.

It is a super-2 number, since 2×228069² = 104030937522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 8447 = 228069 / (2 + 2 + 8 + 0 + 6 + 9).

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4197 + ... + 4250.

It is an arithmetic number, because the mean of its divisors is an integer number (42240).

2²²⁸⁰⁶⁹ is an apocalyptic number.

It is an amenable number.

228069 is a deficient number, since it is larger than the sum of its proper divisors (109851).

228069 is an equidigital number, since it uses as much as digits as its factorization.

228069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8456 (or 8450 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 228069 is about 477.5657022861. The cubic root of 228069 is about 61.0973095248.

The spelling of 228069 in words is "two hundred twenty-eight thousand, sixty-nine".