43381345 has 16 divisors (see below), whose sum is σ = 60312960. Its totient is φ = 29337984.

The previous prime is 43381339. The next prime is 43381379. The reversal of 43381345 is 54318334.

43381345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 43381345 - 2¹³ = 43373153 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5935 + ... + 11044.

It is an arithmetic number, because the mean of its divisors is an integer number (3769560).

Almost surely, 2^43381345 is an apocalyptic number.

It is an amenable number.

43381345 is a deficient number, since it is larger than the sum of its proper divisors (16931615).

43381345 is a wasteful number, since it uses less digits than its factorization.

43381345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17064.

The product of its digits is 17280, while the sum is 31.

The square root of 43381345 is about 6586.4516243574. The cubic root of 43381345 is about 351.3724209490.

Adding to 43381345 its reverse (54318334), we get a palindrome (97699679).

The spelling of 43381345 in words is "forty-three million, three hundred eighty-one thousand, three hundred forty-five".