144421234340 has 24 divisors (see below), whose sum is σ = 309737457792. Its totient is φ = 56539376480.

The previous prime is 144421234339. The next prime is 144421234417. The reversal of 144421234340 is 43432124441.

It is a junction number, because it is equal to n+sod(n) for n = 144421234297 and 144421234306.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76818866 + ... + 76820745.

It is an arithmetic number, because the mean of its divisors is an integer number (12905727408).

Almost surely, 2^144421234340 is an apocalyptic number.

144421234340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144421234340 is an abundant number, since it is smaller than the sum of its proper divisors (165316223452).

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

144421234340 is a wasteful number, since it uses less digits than its factorization.

144421234340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153639667 (or 153639665 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 144421234340 its reverse (43432124441), we get a palindrome (187853358781).

The spelling of 144421234340 in words is "one hundred forty-four billion, four hundred twenty-one million, two hundred thirty-four thousand, three hundred forty".