43420315 has 8 divisors (see below), whose sum is σ = 52144848. Its totient is φ = 34709280.

The previous prime is 43420291. The next prime is 43420319. The reversal of 43420315 is 51302434.

43420315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-43420315 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43420319) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6160 + ... + 11170.

It is an arithmetic number, because the mean of its divisors is an integer number (6518106).

Almost surely, 2^43420315 is an apocalyptic number.

43420315 is a deficient number, since it is larger than the sum of its proper divisors (8724533).

43420315 is a wasteful number, since it uses less digits than its factorization.

43420315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6749.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 43420315 is about 6589.4093058483. The cubic root of 43420315 is about 351.4776035269.

Adding to 43420315 its reverse (51302434), we get a palindrome (94722749).

The spelling of 43420315 in words is "forty-three million, four hundred twenty thousand, three hundred fifteen".