43809134 has 8 divisors (see below), whose sum is σ = 66545760. Its totient is φ = 21627216.

The previous prime is 43809133. The next prime is 43809149. The reversal of 43809134 is 43190834.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 43809134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43809133) 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, 138479 + ... + 138794.

It is an arithmetic number, because the mean of its divisors is an integer number (8318220).

Almost surely, 2^43809134 is an apocalyptic number.

43809134 is a deficient number, since it is larger than the sum of its proper divisors (22736626).

43809134 is a wasteful number, since it uses less digits than its factorization.

43809134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277354.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 43809134 is about 6618.8468784223. The cubic root of 43809134 is about 352.5236213066.

Adding to 43809134 its reverse (43190834), we get a palindrome (86999968).

The spelling of 43809134 in words is "forty-three million, eight hundred nine thousand, one hundred thirty-four".