144420012 has 72 divisors (see below), whose sum is σ = 399776832. Its totient is φ = 43596000.

The previous prime is 144420011. The next prime is 144420037. The reversal of 144420012 is 210024441.

144420012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (144420011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136887 + ... + 137937.

It is an arithmetic number, because the mean of its divisors is an integer number (5552456).

Almost surely, 2^144420012 is an apocalyptic number.

144420012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144420012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199888416).

144420012 is an abundant number, since it is smaller than the sum of its proper divisors (255356820).

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

144420012 is a wasteful number, since it uses less digits than its factorization.

144420012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419 (or 1414 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 144420012 is about 12017.4877574308. The cubic root of 144420012 is about 524.6573873455.

Adding to 144420012 its reverse (210024441), we get a palindrome (354444453).

The spelling of 144420012 in words is "one hundred forty-four million, four hundred twenty thousand, twelve".