43349589 has 18 divisors (see below), whose sum is σ = 63869858. Its totient is φ = 28324800.

The previous prime is 43349569. The next prime is 43349597. The reversal of 43349589 is 98594334.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 3090564 + 40259025 = 1758^2 + 6345^2 .

It is not a de Polignac number, because 43349589 - 2¹² = 43345493 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 (43349539) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 154129 + ... + 154409.

Almost surely, 2^43349589 is an apocalyptic number.

It is an amenable number.

43349589 is a deficient number, since it is larger than the sum of its proper divisors (20520269).

43349589 is an equidigital number, since it uses as much as digits as its factorization.

43349589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629 (or 345 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 43349589 is about 6584.0404767893. The cubic root of 43349589 is about 351.2866628397.

The spelling of 43349589 in words is "forty-three million, three hundred forty-nine thousand, five hundred eighty-nine".