43369 has 4 divisors (see below), whose sum is σ = 44800. Its totient is φ = 41940.

The previous prime is 43331. The next prime is 43391. The reversal of 43369 is 96334.

43369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43369 - 2¹⁵ = 10601 is a prime.

It is a super-2 number, since 2×43369² = 3761740322, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43319) 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, 669 + ... + 730.

It is an arithmetic number, because the mean of its divisors is an integer number (11200).

2⁴³³⁶⁹ is an apocalyptic number.

It is an amenable number.

43369 is a deficient number, since it is larger than the sum of its proper divisors (1431).

43369 is a wasteful number, since it uses less digits than its factorization.

43369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430.

The product of its digits is 1944, while the sum is 25.

The square root of 43369 is about 208.2522508882. The cubic root of 43369 is about 35.1339087850.

The spelling of 43369 in words is "forty-three thousand, three hundred sixty-nine".