43914109 has 4 divisors (see below), whose sum is σ = 43939360. Its totient is φ = 43888860.

The previous prime is 43914097. The next prime is 43914127. The reversal of 43914109 is 90141934.

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 43914109 - 2¹⁷ = 43783037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43914809) 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, 9807 + ... + 13564.

It is an arithmetic number, because the mean of its divisors is an integer number (10984840).

Almost surely, 2^43914109 is an apocalyptic number.

It is an amenable number.

43914109 is a deficient number, since it is larger than the sum of its proper divisors (25251).

43914109 is a wasteful number, since it uses less digits than its factorization.

43914109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25250.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 43914109 is about 6626.7721403410. The cubic root of 43914109 is about 352.8049678746.

The spelling of 43914109 in words is "forty-three million, nine hundred fourteen thousand, one hundred nine".