4432645 has 16 divisors (see below), whose sum is σ = 6151680. Its totient is φ = 3003264.

The previous prime is 4432627. The next prime is 4432657. The reversal of 4432645 is 5462344.

It is a cyclic number.

It is not a de Polignac number, because 4432645 - 2⁵ = 4432613 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2404 + ... + 3826.

It is an arithmetic number, because the mean of its divisors is an integer number (384480).

Almost surely, 2^4432645 is an apocalyptic number.

It is an amenable number.

4432645 is a deficient number, since it is larger than the sum of its proper divisors (1719035).

4432645 is a wasteful number, since it uses less digits than its factorization.

4432645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1524.

The product of its digits is 11520, while the sum is 28.

The square root of 4432645 is about 2105.3847629353. The cubic root of 4432645 is about 164.2685096755.

Adding to 4432645 its reverse (5462344), we get a palindrome (9894989).

The spelling of 4432645 in words is "four million, four hundred thirty-two thousand, six hundred forty-five".