4451144 has 32 divisors (see below), whose sum is σ = 9227520. Its totient is φ = 2002176.

The previous prime is 4451141. The next prime is 4451179. The reversal of 4451144 is 4411544.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (4451141) 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 7 ways as a sum of consecutive naturals, for example, 2417 + ... + 3839.

It is an arithmetic number, because the mean of its divisors is an integer number (288360).

Almost surely, 2^4451144 is an apocalyptic number.

It is an amenable number.

4451144 is an abundant number, since it is smaller than the sum of its proper divisors (4776376).

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

4451144 is a wasteful number, since it uses less digits than its factorization.

4451144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469 (or 1465 counting only the distinct ones).

The product of its digits is 1280, while the sum is 23.

The square root of 4451144 is about 2109.7734475531. The cubic root of 4451144 is about 164.4967094374.

Adding to 4451144 its reverse (4411544), we get a palindrome (8862688).

The spelling of 4451144 in words is "four million, four hundred fifty-one thousand, one hundred forty-four".