144442260 has 72 divisors (see below), whose sum is σ = 440687520. Its totient is φ = 38294208.

The previous prime is 144442247. The next prime is 144442273. The reversal of 144442260 is 62244441.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (144442247) and next prime (144442273).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29979 + ... + 34461.

It is an arithmetic number, because the mean of its divisors is an integer number (6120660).

Almost surely, 2^144442260 is an apocalyptic number.

144442260 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 144442260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220343760).

144442260 is an abundant number, since it is smaller than the sum of its proper divisors (296245260).

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

144442260 is a wasteful number, since it uses less digits than its factorization.

144442260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4677 (or 4672 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 144442260 is about 12018.4133728209. The cubic root of 144442260 is about 524.6843272367.

The spelling of 144442260 in words is "one hundred forty-four million, four hundred forty-two thousand, two hundred sixty".