144842280 has 128 divisors (see below), whose sum is σ = 477290880. Its totient is φ = 34872320.

The previous prime is 144842279. The next prime is 144842281. The reversal of 144842280 is 82248441.

It is an interprime number because it is at equal distance from previous prime (144842279) and next prime (144842281).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (144842281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 259762 + ... + 260318.

It is an arithmetic number, because the mean of its divisors is an integer number (3728835).

Almost surely, 2^144842280 is an apocalyptic number.

144842280 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 144842280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238645440).

144842280 is an abundant number, since it is smaller than the sum of its proper divisors (332448600).

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

144842280 is a wasteful number, since it uses less digits than its factorization.

144842280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779 (or 775 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 33.

The square root of 144842280 is about 12035.0438304146. The cubic root of 144842280 is about 525.1682363323.

The spelling of 144842280 in words is "one hundred forty-four million, eight hundred forty-two thousand, two hundred eighty".