4431144 has 16 divisors (see below), whose sum is σ = 11077920. Its totient is φ = 1477040.

The previous prime is 4431143. The next prime is 4431149. The reversal of 4431144 is 4411344.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 4431144.

It is not an unprimeable number, because it can be changed into a prime (4431143) 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, 92292 + ... + 92339.

It is an arithmetic number, because the mean of its divisors is an integer number (692370).

Almost surely, 2^4431144 is an apocalyptic number.

It is an amenable number.

4431144 is an abundant number, since it is smaller than the sum of its proper divisors (6646776).

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

4431144 is a wasteful number, since it uses less digits than its factorization.

4431144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184640 (or 184636 counting only the distinct ones).

The product of its digits is 768, while the sum is 21.

The square root of 4431144 is about 2105.0282658435. The cubic root of 4431144 is about 164.2499658287.

Adding to 4431144 its reverse (4411344), we get a palindrome (8842488).

The spelling of 4431144 in words is "four million, four hundred thirty-one thousand, one hundred forty-four".