144431280 has 120 divisors (see below), whose sum is σ = 554360352. Its totient is φ = 33011712.

The previous prime is 144431279. The next prime is 144431317. The reversal of 144431280 is 82134441.

It is a tau number, because it is divible by the number of its divisors (120).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 9289 + ... + 19368.

Almost surely, 2^144431280 is an apocalyptic number.

144431280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144431280 is an abundant number, since it is smaller than the sum of its proper divisors (409929072).

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

144431280 is a wasteful number, since it uses less digits than its factorization.

144431280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28683 (or 28674 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 144431280 is about 12017.9565650738. The cubic root of 144431280 is about 524.6710320051.

The spelling of 144431280 in words is "one hundred forty-four million, four hundred thirty-one thousand, two hundred eighty".