4431424 has 28 divisors (see below), whose sum is σ = 9313164. Its totient is φ = 2084864.

The previous prime is 4431367. The next prime is 4431443. The reversal of 4431424 is 4241344.

It can be written as a sum of positive squares in 2 ways, for example, as 1871424 + 2560000 = 1368^2 + 1600^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4431395 and 4431404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 949 + ... + 3124.

It is an arithmetic number, because the mean of its divisors is an integer number (332613).

Almost surely, 2^4431424 is an apocalyptic number.

It is an amenable number.

4431424 is an abundant number, since it is smaller than the sum of its proper divisors (4881740).

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

4431424 is a wasteful number, since it uses less digits than its factorization.

4431424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4102 (or 4092 counting only the distinct ones).

The product of its digits is 1536, while the sum is 22.

The square root of 4431424 is about 2105.0947722134. The cubic root of 4431424 is about 164.2534253583.

Adding to 4431424 its reverse (4241344), we get a palindrome (8672768).

The spelling of 4431424 in words is "four million, four hundred thirty-one thousand, four hundred twenty-four".