4450144 has 12 divisors (see below), whose sum is σ = 8761284. Its totient is φ = 2225056.

The previous prime is 4450139. The next prime is 4450151. The reversal of 4450144 is 4410544.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 69502 + ... + 69565.

It is an arithmetic number, because the mean of its divisors is an integer number (730107).

Almost surely, 2^4450144 is an apocalyptic number.

It is an amenable number.

4450144 is a deficient number, since it is larger than the sum of its proper divisors (4311140).

4450144 is a wasteful number, since it uses less digits than its factorization.

4450144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139077 (or 139069 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 4450144 is about 2109.5364419701. The cubic root of 4450144 is about 164.4843898307.

Adding to 4450144 its reverse (4410544), we get a palindrome (8860688).

The spelling of 4450144 in words is "four million, four hundred fifty thousand, one hundred forty-four".