144340224 has 72 divisors (see below), whose sum is σ = 439051200. Its totient is φ = 41238528.

The previous prime is 144340223. The next prime is 144340327. The reversal of 144340224 is 422043441.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 144340194 and 144340203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144340223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8049 + ... + 18800.

Almost surely, 2^144340224 is an apocalyptic number.

144340224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

144340224 is an abundant number, since it is smaller than the sum of its proper divisors (294710976).

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

144340224 is an equidigital number, since it uses as much as digits as its factorization.

144340224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26875 (or 26861 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 144340224 is about 12014.1676365864. The cubic root of 144340224 is about 524.5607500571.

Adding to 144340224 its reverse (422043441), we get a palindrome (566383665).

The spelling of 144340224 in words is "one hundred forty-four million, three hundred forty thousand, two hundred twenty-four".