144021432 has 16 divisors (see below), whose sum is σ = 360053640. Its totient is φ = 48007136.

The previous prime is 144021407. The next prime is 144021439. The reversal of 144021432 is 234120441.

144021432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 144021399 and 144021408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144021439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3000423 + ... + 3000470.

Almost surely, 2^144021432 is an apocalyptic number.

144021432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

144021432 is an abundant number, since it is smaller than the sum of its proper divisors (216032208).

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

144021432 is a wasteful number, since it uses less digits than its factorization.

144021432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6000902 (or 6000898 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 144021432 is about 12000.8929667754. The cubic root of 144021432 is about 524.1742811303.

Adding to 144021432 its reverse (234120441), we get a palindrome (378141873).

Subtracting 144021432 from its reverse (234120441), we obtain a palindrome (90099009).

It can be divided in two parts, 144021 and 432, that added together give a triangular number (144453 = T₅₃₇).

The spelling of 144021432 in words is "one hundred forty-four million, twenty-one thousand, four hundred thirty-two".