43408573 has 4 divisors (see below), whose sum is σ = 46747708. Its totient is φ = 40069440.

The previous prime is 43408571. The next prime is 43408577. The reversal of 43408573 is 37580434.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7851204 + 35557369 = 2802^2 + 5963^2 .

It is a cyclic number.

It is not a de Polignac number, because 43408573 - 2¹ = 43408571 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 (43408571) 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, 1669548 + ... + 1669573.

It is an arithmetic number, because the mean of its divisors is an integer number (11686927).

Almost surely, 2^43408573 is an apocalyptic number.

It is an amenable number.

43408573 is a deficient number, since it is larger than the sum of its proper divisors (3339135).

43408573 is a wasteful number, since it uses less digits than its factorization.

43408573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3339134.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 43408573 is about 6588.5182704459. The cubic root of 43408573 is about 351.4459177281.

The spelling of 43408573 in words is "forty-three million, four hundred eight thousand, five hundred seventy-three".