144424452 has 48 divisors (see below), whose sum is σ = 372339072. Its totient is φ = 43338240.

The previous prime is 144424451. The next prime is 144424477. The reversal of 144424452 is 254424441.

It is not an unprimeable number, because it can be changed into a prime (144424451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10699 + ... + 20082.

It is an arithmetic number, because the mean of its divisors is an integer number (7757064).

Almost surely, 2^144424452 is an apocalyptic number.

144424452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

144424452 is an abundant number, since it is smaller than the sum of its proper divisors (227914620).

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

144424452 is a wasteful number, since it uses less digits than its factorization.

144424452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30828 (or 30826 counting only the distinct ones).

The product of its digits is 20480, while the sum is 30.

The square root of 144424452 is about 12017.6724868004. The cubic root of 144424452 is about 524.6627639202.

Adding to 144424452 its reverse (254424441), we get a palindrome (398848893).

The spelling of 144424452 in words is "one hundred forty-four million, four hundred twenty-four thousand, four hundred fifty-two".