228142844 has 12 divisors (see below), whose sum is σ = 399756504. Its totient is φ = 113926704.

The previous prime is 228142843. The next prime is 228142897. The reversal of 228142844 is 448241822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228142843) 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, 32594 + ... + 38969.

It is an arithmetic number, because the mean of its divisors is an integer number (33313042).

Almost surely, 2^228142844 is an apocalyptic number.

It is an amenable number.

228142844 is a deficient number, since it is larger than the sum of its proper divisors (171613660).

228142844 is a wasteful number, since it uses less digits than its factorization.

228142844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72364 (or 72362 counting only the distinct ones).

The product of its digits is 32768, while the sum is 35.

The square root of 228142844 is about 15104.3981674213. The cubic root of 228142844 is about 611.0390282607.

The spelling of 228142844 in words is "two hundred twenty-eight million, one hundred forty-two thousand, eight hundred forty-four".