43436 has 6 divisors (see below), whose sum is σ = 76020. Its totient is φ = 21716.

The previous prime is 43427. The next prime is 43441. The reversal of 43436 is 63434.

It is a happy number.

43436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between even and odd.

It is a nialpdrome in base 9.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5426 + ... + 5433.

It is an arithmetic number, because the mean of its divisors is an integer number (12670).

2⁴³⁴³⁶ is an apocalyptic number.

It is an amenable number.

43436 is a deficient number, since it is larger than the sum of its proper divisors (32584).

43436 is a wasteful number, since it uses less digits than its factorization.

43436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10863 (or 10861 counting only the distinct ones).

The product of its digits is 864, while the sum is 20.

The square root of 43436 is about 208.4130514147. The cubic root of 43436 is about 35.1519920605.

The spelling of 43436 in words is "forty-three thousand, four hundred thirty-six".