144308444 has 48 divisors (see below), whose sum is σ = 309855168. Its totient is φ = 57397248.

The previous prime is 144308443. The next prime is 144308447. The reversal of 144308444 is 444803441.

It is a super-2 number, since 2×144308444² = 41649854019402272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 144308444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144308443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32672 + ... + 36824.

It is an arithmetic number, because the mean of its divisors is an integer number (6455316).

Almost surely, 2^144308444 is an apocalyptic number.

144308444 is a gapful number since it is divisible by the number (14) 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 144308444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154927584).

144308444 is an abundant number, since it is smaller than the sum of its proper divisors (165546724).

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

144308444 is a wasteful number, since it uses less digits than its factorization.

144308444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4254 (or 4252 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

The square root of 144308444 is about 12012.8449586266. The cubic root of 144308444 is about 524.5222489754.

The spelling of 144308444 in words is "one hundred forty-four million, three hundred eight thousand, four hundred forty-four".