228444073 has 16 divisors (see below), whose sum is σ = 280054656. Its totient is φ = 183363840.

The previous prime is 228444059. The next prime is 228444089. The reversal of 228444073 is 370444822.

It is not a de Polignac number, because 228444073 - 2²⁵ = 194889641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228444023) 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 15 ways as a sum of consecutive naturals, for example, 31440 + ... + 38017.

It is an arithmetic number, because the mean of its divisors is an integer number (17503416).

Almost surely, 2^228444073 is an apocalyptic number.

228444073 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

228444073 is a deficient number, since it is larger than the sum of its proper divisors (51610583).

228444073 is a wasteful number, since it uses less digits than its factorization.

228444073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69504.

The product of its (nonzero) digits is 43008, while the sum is 34.

The square root of 228444073 is about 15114.3664438838. The cubic root of 228444073 is about 611.3078389794.

Adding to 228444073 its reverse (370444822), we get a palindrome (598888895).

The spelling of 228444073 in words is "two hundred twenty-eight million, four hundred forty-four thousand, seventy-three".