43430425 has 12 divisors (see below), whose sum is σ = 53975340. Its totient is φ = 34665920.

The previous prime is 43430381. The next prime is 43430449. The reversal of 43430425 is 52403434.

It can be written as a sum of positive squares in 6 ways, for example, as 3790809 + 39639616 = 1947^2 + 6296^2 .

It is not a de Polignac number, because 43430425 - 2⁷ = 43430297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 43430425.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11019 + ... + 14431.

It is an arithmetic number, because the mean of its divisors is an integer number (4497945).

Almost surely, 2^43430425 is an apocalyptic number.

It is an amenable number.

43430425 is a deficient number, since it is larger than the sum of its proper divisors (10544915).

43430425 is a wasteful number, since it uses less digits than its factorization.

43430425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3932 (or 3927 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 43430425 is about 6590.1764012809. The cubic root of 43430425 is about 351.5048807957.

Adding to 43430425 its reverse (52403434), we get a palindrome (95833859).

The spelling of 43430425 in words is "forty-three million, four hundred thirty thousand, four hundred twenty-five".