144336228 has 12 divisors (see below), whose sum is σ = 336784560. Its totient is φ = 48112072.

The previous prime is 144336221. The next prime is 144336287. The reversal of 144336228 is 822633441.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (144336221) 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, 6013998 + ... + 6014021.

It is an arithmetic number, because the mean of its divisors is an integer number (28065380).

Almost surely, 2^144336228 is an apocalyptic number.

It is an amenable number.

144336228 is an abundant number, since it is smaller than the sum of its proper divisors (192448332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144336228 is a wasteful number, since it uses less digits than its factorization.

144336228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12028026 (or 12028024 counting only the distinct ones).

The product of its digits is 27648, while the sum is 33.

The square root of 144336228 is about 12014.0013317795. The cubic root of 144336228 is about 524.5559092625. Note that the first 3 decimals are identical.

Adding to 144336228 its reverse (822633441), we get a palindrome (966969669).

The spelling of 144336228 in words is "one hundred forty-four million, three hundred thirty-six thousand, two hundred twenty-eight".