228144442 has 32 divisors (see below), whose sum is σ = 359904384. Its totient is φ = 108360000.

The previous prime is 228144409. The next prime is 228144443. The reversal of 228144442 is 244441822.

228144442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (228144443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 908817 + ... + 909067.

It is an arithmetic number, because the mean of its divisors is an integer number (11247012).

Almost surely, 2^228144442 is an apocalyptic number.

228144442 is a deficient number, since it is larger than the sum of its proper divisors (131759942).

228144442 is a wasteful number, since it uses less digits than its factorization.

228144442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534.

The product of its digits is 16384, while the sum is 31.

The square root of 228144442 is about 15104.4510658282. The cubic root of 228144442 is about 611.0404549079.

The spelling of 228144442 in words is "two hundred twenty-eight million, one hundred forty-four thousand, four hundred forty-two".