144234428 has 24 divisors (see below), whose sum is σ = 272326320. Its totient is φ = 66447360.

The previous prime is 144234401. The next prime is 144234437. The reversal of 144234428 is 824432441.

It is a junction number, because it is equal to n+sod(n) for n = 144234394 and 144234403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29948 + ... + 34428.

It is an arithmetic number, because the mean of its divisors is an integer number (11346930).

Almost surely, 2^144234428 is an apocalyptic number.

It is an amenable number.

144234428 is a deficient number, since it is larger than the sum of its proper divisors (128091892).

144234428 is a wasteful number, since it uses less digits than its factorization.

144234428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5117 (or 5115 counting only the distinct ones).

The product of its digits is 24576, while the sum is 32.

The square root of 144234428 is about 12009.7638611257. The cubic root of 144234428 is about 524.4325575777.

Adding to 144234428 its reverse (824432441), we get a palindrome (968666869).

The spelling of 144234428 in words is "one hundred forty-four million, two hundred thirty-four thousand, four hundred twenty-eight".