144144340 has 24 divisors (see below), whose sum is σ = 306852840. Its totient is φ = 56867328.

The previous prime is 144144331. The next prime is 144144349. The reversal of 144144340 is 43441441.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (144144331) and next prime (144144349).

It can be written as a sum of positive squares in 4 ways, for example, as 8375236 + 135769104 = 2894^2 + 11652^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144144349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47905 + ... + 50824.

It is an arithmetic number, because the mean of its divisors is an integer number (12785535).

Almost surely, 2^144144340 is an apocalyptic number.

144144340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144144340 is an abundant number, since it is smaller than the sum of its proper divisors (162708500).

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

144144340 is a wasteful number, since it uses less digits than its factorization.

144144340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98811 (or 98809 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 144144340 is about 12006.0126603298. The cubic root of 144144340 is about 524.3233489774.

Adding to 144144340 its reverse (43441441), we get a palindrome (187585781).

The spelling of 144144340 in words is "one hundred forty-four million, one hundred forty-four thousand, three hundred forty".