43403725 has 6 divisors (see below), whose sum is σ = 53820650. Its totient is φ = 34722960.

The previous prime is 43403713. The next prime is 43403761. The reversal of 43403725 is 52730434.

43403725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 10156969 + 33246756 = 3187^2 + 5766^2 .

It is not a de Polignac number, because 43403725 - 2⁵ = 43403693 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43403693 and 43403702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 868050 + ... + 868099.

Almost surely, 2^43403725 is an apocalyptic number.

It is an amenable number.

43403725 is a deficient number, since it is larger than the sum of its proper divisors (10416925).

43403725 is a wasteful number, since it uses less digits than its factorization.

43403725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736159 (or 1736154 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 43403725 is about 6588.1503474040. The cubic root of 43403725 is about 351.4328337286.

The spelling of 43403725 in words is "forty-three million, four hundred three thousand, seven hundred twenty-five".