144421342 has 16 divisors (see below), whose sum is σ = 233845920. Its totient is φ = 66498912.

The previous prime is 144421331. The next prime is 144421349. The reversal of 144421342 is 243124441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144421349) 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, 5088 + ... + 17740.

It is an arithmetic number, because the mean of its divisors is an integer number (14615370).

Almost surely, 2^144421342 is an apocalyptic number.

144421342 is a deficient number, since it is larger than the sum of its proper divisors (89424578).

144421342 is a wasteful number, since it uses less digits than its factorization.

144421342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13107.

The product of its digits is 3072, while the sum is 25.

The square root of 144421342 is about 12017.5430933282. The cubic root of 144421342 is about 524.6589979076.

Adding to 144421342 its reverse (243124441), we get a palindrome (387545783).

The spelling of 144421342 in words is "one hundred forty-four million, four hundred twenty-one thousand, three hundred forty-two".