228443242 has 8 divisors (see below), whose sum is σ = 346515300. Its totient is φ = 112938144.

The previous prime is 228443239. The next prime is 228443249. The reversal of 228443242 is 242344822.

It can be written as a sum of positive squares in 2 ways, for example, as 224070961 + 4372281 = 14969^2 + 2091^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (228443249) 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, 641517 + ... + 641872.

Almost surely, 2^228443242 is an apocalyptic number.

228443242 is a deficient number, since it is larger than the sum of its proper divisors (118072058).

228443242 is a wasteful number, since it uses less digits than its factorization.

228443242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283480.

The product of its digits is 24576, while the sum is 31.

The square root of 228443242 is about 15114.3389534574. The cubic root of 228443242 is about 611.3070977368.

The spelling of 228443242 in words is "two hundred twenty-eight million, four hundred forty-three thousand, two hundred forty-two".