144355244 has 12 divisors (see below), whose sum is σ = 275587368. Its totient is φ = 65616000.

The previous prime is 144355231. The next prime is 144355249. The reversal of 144355244 is 442553441.

It is a self number, because there is not a number n which added to its sum of digits gives 144355244.

It is not an unprimeable number, because it can be changed into a prime (144355249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1640357 + ... + 1640444.

It is an arithmetic number, because the mean of its divisors is an integer number (22965614).

Almost surely, 2^144355244 is an apocalyptic number.

It is an amenable number.

144355244 is a deficient number, since it is larger than the sum of its proper divisors (131232124).

144355244 is a wasteful number, since it uses less digits than its factorization.

144355244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3280816 (or 3280814 counting only the distinct ones).

The product of its digits is 38400, while the sum is 32.

The square root of 144355244 is about 12014.7927156485. The cubic root of 144355244 is about 524.5789446369.

The spelling of 144355244 in words is "one hundred forty-four million, three hundred fifty-five thousand, two hundred forty-four".