144444920 has 32 divisors (see below), whose sum is σ = 344120400. Its totient is φ = 54379008.

The previous prime is 144444919. The next prime is 144444977. The reversal of 144444920 is 29444441.

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 7 ways as a sum of consecutive naturals, for example, 105530 + ... + 106889.

Almost surely, 2^144444920 is an apocalyptic number.

144444920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144444920 is an abundant number, since it is smaller than the sum of its proper divisors (199675480).

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

144444920 is a wasteful number, since it uses less digits than its factorization.

144444920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212447 (or 212443 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 144444920 is about 12018.5240358373. The cubic root of 144444920 is about 524.6875480202.

It can be divided in two parts, 1444 and 44920, that added together give a palindrome (46364).

The spelling of 144444920 in words is "one hundred forty-four million, four hundred forty-four thousand, nine hundred twenty".