228144556 has 12 divisors (see below), whose sum is σ = 422738568. Its totient is φ = 107362112.

The previous prime is 228144529. The next prime is 228144559. The reversal of 228144556 is 655441822.

It is not an unprimeable number, because it can be changed into a prime (228144559) 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, 1677466 + ... + 1677601.

It is an arithmetic number, because the mean of its divisors is an integer number (35228214).

Almost surely, 2^228144556 is an apocalyptic number.

It is an amenable number.

228144556 is a deficient number, since it is larger than the sum of its proper divisors (194594012).

228144556 is a wasteful number, since it uses less digits than its factorization.

228144556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3355088 (or 3355086 counting only the distinct ones).

The product of its digits is 76800, while the sum is 37.

The square root of 228144556 is about 15104.4548395498. The cubic root of 228144556 is about 611.0405566835.

The spelling of 228144556 in words is "two hundred twenty-eight million, one hundred forty-four thousand, five hundred fifty-six".