43726 has 4 divisors (see below), whose sum is σ = 65592. Its totient is φ = 21862.

The previous prime is 43721. The next prime is 43753. The reversal of 43726 is 62734.

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

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 43697 and 43706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43721) by changing a digit.

43726 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10930 + ... + 10933.

It is an arithmetic number, because the mean of its divisors is an integer number (16398).

2⁴³⁷²⁶ is an apocalyptic number.

43726 is a deficient number, since it is larger than the sum of its proper divisors (21866).

43726 is a wasteful number, since it uses less digits than its factorization.

43726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21865.

The product of its digits is 1008, while the sum is 22.

The square root of 43726 is about 209.1076277901. The cubic root of 43726 is about 35.2300492372.

The spelling of 43726 in words is "forty-three thousand, seven hundred twenty-six".