144428873 has 8 divisors (see below), whose sum is σ = 150295200. Its totient is φ = 138676608.

The previous prime is 144428863. The next prime is 144428887. The reversal of 144428873 is 378824441.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144428873 - 2⁴ = 144428857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 144428873.

It is not an unprimeable number, because it can be changed into a prime (144428863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25928 + ... + 31001.

It is an arithmetic number, because the mean of its divisors is an integer number (18786900).

Almost surely, 2^144428873 is an apocalyptic number.

It is an amenable number.

144428873 is a deficient number, since it is larger than the sum of its proper divisors (5866327).

144428873 is an equidigital number, since it uses as much as digits as its factorization.

144428873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57031.

The product of its digits is 172032, while the sum is 41.

The square root of 144428873 is about 12017.8564228401. The cubic root of 144428873 is about 524.6681173775.

The spelling of 144428873 in words is "one hundred forty-four million, four hundred twenty-eight thousand, eight hundred seventy-three".