43340385 has 24 divisors (see below), whose sum is σ = 76224960. Its totient is φ = 21012640.

The previous prime is 43340377. The next prime is 43340393. The reversal of 43340385 is 58304334.

It is an interprime number because it is at equal distance from previous prime (43340377) and next prime (43340393).

It is not a de Polignac number, because 43340385 - 2³ = 43340377 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 10125 + ... + 13754.

It is an arithmetic number, because the mean of its divisors is an integer number (3176040).

Almost surely, 2^43340385 is an apocalyptic number.

It is an amenable number.

43340385 is a deficient number, since it is larger than the sum of its proper divisors (32884575).

43340385 is a wasteful number, since it uses less digits than its factorization.

43340385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23909 (or 23898 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 43340385 is about 6583.3414767882. The cubic root of 43340385 is about 351.2617993107.

The spelling of 43340385 in words is "forty-three million, three hundred forty thousand, three hundred eighty-five".