4431634 has 8 divisors (see below), whose sum is σ = 6706620. Its totient is φ = 2196096.

The previous prime is 4431587. The next prime is 4431641. The reversal of 4431634 is 4361344.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4422609 + 9025 = 2103^2 + 95^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 4431599 and 4431608.

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 in 3 ways as a sum of consecutive naturals, for example, 9579 + ... + 10030.

Almost surely, 2^4431634 is an apocalyptic number.

4431634 is a deficient number, since it is larger than the sum of its proper divisors (2274986).

4431634 is a wasteful number, since it uses less digits than its factorization.

4431634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19724.

The product of its digits is 3456, while the sum is 25.

The square root of 4431634 is about 2105.1446506119. The cubic root of 4431634 is about 164.2560199099.

Adding to 4431634 its reverse (4361344), we get a palindrome (8792978).

The spelling of 4431634 in words is "four million, four hundred thirty-one thousand, six hundred thirty-four".