4228069 has 4 divisors (see below), whose sum is σ = 4233196. Its totient is φ = 4222944.

The previous prime is 4228039. The next prime is 4228079. The reversal of 4228069 is 9608224.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3150625 + 1077444 = 1775^2 + 1038^2 .

It is a cyclic number.

It is not a de Polignac number, because 4228069 - 2¹⁹ = 3703781 is a prime.

It is a super-2 number, since 2×4228069² = 35753134937522, which contains 22 as substring.

It is a Duffinian number.

4228069 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4228069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4228039) 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, 1014 + ... + 3079.

It is an arithmetic number, because the mean of its divisors is an integer number (1058299).

Almost surely, 2^4228069 is an apocalyptic number.

It is an amenable number.

4228069 is a deficient number, since it is larger than the sum of its proper divisors (5127).

4228069 is a wasteful number, since it uses less digits than its factorization.

4228069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5126.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 4228069 is about 2056.2268843686. The cubic root of 4228069 is about 161.7014901189.

It can be divided in two parts, 42280 and 69, that multiplied together give a triangular number (2917320 = T₂₄₁₅).

The spelling of 4228069 in words is "four million, two hundred twenty-eight thousand, sixty-nine".