144688680 has 80 divisors (see below), whose sum is σ = 486325620. Its totient is φ = 38582784.

The previous prime is 144688669. The next prime is 144688681. The reversal of 144688680 is 86886441.

It can be written as a sum of positive squares in 2 ways, for example, as 144144036 + 544644 = 12006^2 + 738^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (144688681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 19089 + ... + 25568.

Almost surely, 2^144688680 is an apocalyptic number.

144688680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144688680 is an abundant number, since it is smaller than the sum of its proper divisors (341636940).

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

144688680 is a wasteful number, since it uses less digits than its factorization.

144688680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44680 (or 44667 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The square root of 144688680 is about 12028.6607733363. The cubic root of 144688680 is about 524.9825300309.

The spelling of 144688680 in words is "one hundred forty-four million, six hundred eighty-eight thousand, six hundred eighty".