144009644 has 12 divisors (see below), whose sum is σ = 252909384. Its totient is φ = 71749824.

The previous prime is 144009631. The next prime is 144009707. The reversal of 144009644 is 446900441.

It is a self number, because there is not a number n which added to its sum of digits gives 144009644.

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, 62477 + ... + 64740.

It is an arithmetic number, because the mean of its divisors is an integer number (21075782).

Almost surely, 2^144009644 is an apocalyptic number.

It is an amenable number.

144009644 is a deficient number, since it is larger than the sum of its proper divisors (108899740).

144009644 is a wasteful number, since it uses less digits than its factorization.

144009644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127504 (or 127502 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 144009644 is about 12000.4018266056. The cubic root of 144009644 is about 524.1599797056.

The spelling of 144009644 in words is "one hundred forty-four million, nine thousand, six hundred forty-four".