144442980 has 96 divisors (see below), whose sum is σ = 490250880. Its totient is φ = 35015040.

The previous prime is 144442979. The next prime is 144443009. The reversal of 144442980 is 89244441.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6219 + ... + 18098.

It is an arithmetic number, because the mean of its divisors is an integer number (5106780).

Almost surely, 2^144442980 is an apocalyptic number.

144442980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144442980 is an abundant number, since it is smaller than the sum of its proper divisors (345807900).

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

144442980 is a wasteful number, since it uses less digits than its factorization.

144442980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24346 (or 24338 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 144442980 is about 12018.4433268207. The cubic root of 144442980 is about 524.6851990316.

It can be divided in two parts, 14444 and 2980, that added together give a square (17424 = 132²).

The spelling of 144442980 in words is "one hundred forty-four million, four hundred forty-two thousand, nine hundred eighty".