43440825 has 24 divisors (see below), whose sum is σ = 72013248. Its totient is φ = 23106880.

The previous prime is 43440809. The next prime is 43440829. The reversal of 43440825 is 52804434.

It is not a de Polignac number, because 43440825 - 2⁴ = 43440809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43440792 and 43440801.

It is not an unprimeable number, because it can be changed into a prime (43440829) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48532 + ... + 49418.

It is an arithmetic number, because the mean of its divisors is an integer number (3000552).

Almost surely, 2^43440825 is an apocalyptic number.

It is an amenable number.

43440825 is a deficient number, since it is larger than the sum of its proper divisors (28572423).

43440825 is a wasteful number, since it uses less digits than its factorization.

43440825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553 (or 1548 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 43440825 is about 6590.9654072829. The cubic root of 43440825 is about 351.5329360819.

The spelling of 43440825 in words is "forty-three million, four hundred forty thousand, eight hundred twenty-five".