144020380 has 96 divisors (see below), whose sum is σ = 376588800. Its totient is φ = 45142272.

The previous prime is 144020369. The next prime is 144020381. The reversal of 144020380 is 83020441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144020381) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 76207 + ... + 78073.

It is an arithmetic number, because the mean of its divisors is an integer number (3922800).

Almost surely, 2^144020380 is an apocalyptic number.

144020380 is a gapful number since it is divisible by the number (10) 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 144020380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188294400).

144020380 is an abundant number, since it is smaller than the sum of its proper divisors (232568420).

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

144020380 is a wasteful number, since it uses less digits than its factorization.

144020380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931 (or 1929 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 144020380 is about 12000.8491366236. The cubic root of 144020380 is about 524.1730048557.

It can be divided in two parts, 144020 and 380, that added together give a square (144400 = 380²).

The spelling of 144020380 in words is "one hundred forty-four million, twenty thousand, three hundred eighty".