144320422 has 8 divisors (see below), whose sum is σ = 219529872. Its totient is φ = 71143800.

The previous prime is 144320417. The next prime is 144320441. The reversal of 144320422 is 224023441.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 144320393 and 144320402.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 508029 + ... + 508312.

It is an arithmetic number, because the mean of its divisors is an integer number (27441234).

Almost surely, 2^144320422 is an apocalyptic number.

144320422 is a deficient number, since it is larger than the sum of its proper divisors (75209450).

144320422 is a wasteful number, since it uses less digits than its factorization.

144320422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016414.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 144320422 is about 12013.3434979609. The cubic root of 144320422 is about 524.5367608397.

Adding to 144320422 its reverse (224023441), we get a palindrome (368343863).

The spelling of 144320422 in words is "one hundred forty-four million, three hundred twenty thousand, four hundred twenty-two".