43425644 has 12 divisors (see below), whose sum is σ = 78615600. Its totient is φ = 20964048.

The previous prime is 43425643. The next prime is 43425647. The reversal of 43425644 is 44652434.

It is a self number, because there is not a number n which added to its sum of digits gives 43425644.

It is not an unprimeable number, because it can be changed into a prime (43425643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187064 + ... + 187295.

It is an arithmetic number, because the mean of its divisors is an integer number (6551300).

Almost surely, 2^43425644 is an apocalyptic number.

It is an amenable number.

43425644 is a deficient number, since it is larger than the sum of its proper divisors (35189956).

43425644 is a wasteful number, since it uses less digits than its factorization.

43425644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374392 (or 374390 counting only the distinct ones).

The product of its digits is 46080, while the sum is 32.

The square root of 43425644 is about 6589.8136544215. The cubic root of 43425644 is about 351.4919819542.

The spelling of 43425644 in words is "forty-three million, four hundred twenty-five thousand, six hundred forty-four".