43730423 has 4 divisors (see below), whose sum is σ = 47705928. Its totient is φ = 39754920.

The previous prime is 43730399. The next prime is 43730447. The reversal of 43730423 is 32403734.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (43730399) and next prime (43730447).

It is a cyclic number.

It is not a de Polignac number, because 43730423 - 2⁶ = 43730359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43730392 and 43730401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43730123) 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, 1987736 + ... + 1987757.

It is an arithmetic number, because the mean of its divisors is an integer number (11926482).

Almost surely, 2^43730423 is an apocalyptic number.

43730423 is a deficient number, since it is larger than the sum of its proper divisors (3975505).

43730423 is a wasteful number, since it uses less digits than its factorization.

43730423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3975504.

The product of its (nonzero) digits is 6048, while the sum is 26.

The square root of 43730423 is about 6612.8982299745. The cubic root of 43730423 is about 352.3123706791.

The spelling of 43730423 in words is "forty-three million, seven hundred thirty thousand, four hundred twenty-three".