144202240 has 160 divisors (see below), whose sum is σ = 426222720. Its totient is φ = 45563904.

The previous prime is 144202217. The next prime is 144202243. The reversal of 144202240 is 42202441.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144202243) 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, 232651 + ... + 233269.

It is an arithmetic number, because the mean of its divisors is an integer number (2663892).

Almost surely, 2^144202240 is an apocalyptic number.

144202240 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 144202240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213111360).

144202240 is an abundant number, since it is smaller than the sum of its proper divisors (282020480).

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

144202240 is an equidigital number, since it uses as much as digits as its factorization.

144202240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662 (or 646 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 144202240 is about 12008.4237100462. The cubic root of 144202240 is about 524.3935431037.

Adding to 144202240 its reverse (42202441), we get a palindrome (186404681).

The spelling of 144202240 in words is "one hundred forty-four million, two hundred two thousand, two hundred forty".