144458644 has 12 divisors (see below), whose sum is σ = 275784768. Its totient is φ = 65663000.

The previous prime is 144458627. The next prime is 144458647. The reversal of 144458644 is 446854441.

It is a junction number, because it is equal to n+sod(n) for n = 144458597 and 144458606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144458647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1641532 + ... + 1641619.

It is an arithmetic number, because the mean of its divisors is an integer number (22982064).

Almost surely, 2^144458644 is an apocalyptic number.

It is an amenable number.

144458644 is a deficient number, since it is larger than the sum of its proper divisors (131326124).

144458644 is a wasteful number, since it uses less digits than its factorization.

144458644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3283166 (or 3283164 counting only the distinct ones).

The product of its digits is 245760, while the sum is 40.

The square root of 144458644 is about 12019.0949742483. The cubic root of 144458644 is about 524.7041646975.

The spelling of 144458644 in words is "one hundred forty-four million, four hundred fifty-eight thousand, six hundred forty-four".