144346422 has 64 divisors (see below), whose sum is σ = 336420864. Its totient is φ = 40803840.

The previous prime is 144346417. The next prime is 144346429. The reversal of 144346422 is 224643441.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 144346422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144346429) 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 31 ways as a sum of consecutive naturals, for example, 141988 + ... + 143000.

It is an arithmetic number, because the mean of its divisors is an integer number (5256576).

Almost surely, 2^144346422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144346422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168210432).

144346422 is an abundant number, since it is smaller than the sum of its proper divisors (192074442).

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

144346422 is a wasteful number, since it uses less digits than its factorization.

144346422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173.

The product of its digits is 18432, while the sum is 30.

The square root of 144346422 is about 12014.4255792776. The cubic root of 144346422 is about 524.5682581998.

Adding to 144346422 its reverse (224643441), we get a palindrome (368989863).

The spelling of 144346422 in words is "one hundred forty-four million, three hundred forty-six thousand, four hundred twenty-two".