43340663 has 4 divisors (see below), whose sum is σ = 43454208. Its totient is φ = 43227120.

The previous prime is 43340657. The next prime is 43340669. The reversal of 43340663 is 36604334.

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

It is an interprime number because it is at equal distance from previous prime (43340657) and next prime (43340669).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43340663 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 (43340669) 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, 56198 + ... + 56963.

It is an arithmetic number, because the mean of its divisors is an integer number (10863552).

Almost surely, 2^43340663 is an apocalyptic number.

43340663 is a deficient number, since it is larger than the sum of its proper divisors (113545).

43340663 is a wasteful number, since it uses less digits than its factorization.

43340663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113544.

The product of its (nonzero) digits is 15552, while the sum is 29.

The square root of 43340663 is about 6583.3625906523. The cubic root of 43340663 is about 351.2625503467.

Adding to 43340663 its reverse (36604334), we get a palindrome (79944997).

The spelling of 43340663 in words is "forty-three million, three hundred forty thousand, six hundred sixty-three".