144789446 has 8 divisors (see below), whose sum is σ = 217409400. Its totient is φ = 72319648.

The previous prime is 144789401. The next prime is 144789467. The reversal of 144789446 is 644987441.

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

It is a self number, because there is not a number n which added to its sum of digits gives 144789446.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 35096 + ... + 39003.

It is an arithmetic number, because the mean of its divisors is an integer number (27176175).

Almost surely, 2^144789446 is an apocalyptic number.

144789446 is a deficient number, since it is larger than the sum of its proper divisors (72619954).

144789446 is an equidigital number, since it uses as much as digits as its factorization.

144789446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75078.

The product of its digits is 774144, while the sum is 47.

The square root of 144789446 is about 12032.8486236635. The cubic root of 144789446 is about 525.1043735040.

The spelling of 144789446 in words is "one hundred forty-four million, seven hundred eighty-nine thousand, four hundred forty-six".