43489313 has 20 divisors (see below), whose sum is σ = 51762480. Its totient is φ = 36525384.

The previous prime is 43489301. The next prime is 43489321. The reversal of 43489313 is 31398434.

It is not a de Polignac number, because 43489313 - 2¹² = 43485217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43489333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 141506 + ... + 141812.

It is an arithmetic number, because the mean of its divisors is an integer number (2588124).

Almost surely, 2^43489313 is an apocalyptic number.

It is an amenable number.

43489313 is a deficient number, since it is larger than the sum of its proper divisors (8273167).

43489313 is an frugal number, since it uses more digits than its factorization.

43489313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394 (or 373 counting only the distinct ones).

The product of its digits is 31104, while the sum is 35.

The square root of 43489313 is about 6594.6427499903. The cubic root of 43489313 is about 351.6636793868.

The spelling of 43489313 in words is "forty-three million, four hundred eighty-nine thousand, three hundred thirteen".