144431444 has 24 divisors (see below), whose sum is σ = 264539520. Its totient is φ = 68867744.

The previous prime is 144431437. The next prime is 144431477. The reversal of 144431444 is 444134441.

144431444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30842 + ... + 35214.

It is an arithmetic number, because the mean of its divisors is an integer number (11022480).

Almost surely, 2^144431444 is an apocalyptic number.

It is an amenable number.

144431444 is a deficient number, since it is larger than the sum of its proper divisors (120108076).

144431444 is a wasteful number, since it uses less digits than its factorization.

144431444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4759 (or 4757 counting only the distinct ones).

The product of its digits is 12288, while the sum is 29.

The square root of 144431444 is about 12017.9633881952. The cubic root of 144431444 is about 524.6712305909.

Adding to 144431444 its reverse (444134441), we get a palindrome (588565885).

The spelling of 144431444 in words is "one hundred forty-four million, four hundred thirty-one thousand, four hundred forty-four".