43238313 has 32 divisors (see below), whose sum is σ = 66326400. Its totient is φ = 27820800.

The previous prime is 43238309. The next prime is 43238317. The reversal of 43238313 is 31383234.

43238313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (43238309) and next prime (43238317).

It is not a de Polignac number, because 43238313 - 2² = 43238309 is a prime.

It is a super-2 number, since 2×43238313² = 3739103422171938, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (43238317) 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 31 ways as a sum of consecutive naturals, for example, 153733 + ... + 154013.

It is an arithmetic number, because the mean of its divisors is an integer number (2072700).

Almost surely, 2^43238313 is an apocalyptic number.

It is an amenable number.

43238313 is a deficient number, since it is larger than the sum of its proper divisors (23088087).

43238313 is a wasteful number, since it uses less digits than its factorization.

43238313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470 (or 464 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 43238313 is about 6575.5846127930. The cubic root of 43238313 is about 350.9858274649.

The spelling of 43238313 in words is "forty-three million, two hundred thirty-eight thousand, three hundred thirteen".