43423745 has 8 divisors (see below), whose sum is σ = 52220160. Its totient is φ = 34664560.

The previous prime is 43423741. The next prime is 43423769. The reversal of 43423745 is 54732434.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 43423745 - 2² = 43423741 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43423741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6671 + ... + 11460.

It is an arithmetic number, because the mean of its divisors is an integer number (6527520).

Almost surely, 2^43423745 is an apocalyptic number.

It is an amenable number.

43423745 is a deficient number, since it is larger than the sum of its proper divisors (8796415).

43423745 is a wasteful number, since it uses less digits than its factorization.

43423745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18615.

The product of its digits is 40320, while the sum is 32.

The square root of 43423745 is about 6589.6695668296. The cubic root of 43423745 is about 351.4868583073.

The spelling of 43423745 in words is "forty-three million, four hundred twenty-three thousand, seven hundred forty-five".