43428367 has 4 divisors (see below), whose sum is σ = 43646800. Its totient is φ = 43209936.

The previous prime is 43428317. The next prime is 43428373. The reversal of 43428367 is 76382434.

It is a happy number.

43428367 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 43428367 - 2²³ = 35039759 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43428317) 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 3 ways as a sum of consecutive naturals, for example, 108918 + ... + 109315.

It is an arithmetic number, because the mean of its divisors is an integer number (10911700).

Almost surely, 2^43428367 is an apocalyptic number.

43428367 is a deficient number, since it is larger than the sum of its proper divisors (218433).

43428367 is a wasteful number, since it uses less digits than its factorization.

43428367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218432.

The product of its digits is 96768, while the sum is 37.

The square root of 43428367 is about 6590.0202579355. The cubic root of 43428367 is about 351.4993285554.

The spelling of 43428367 in words is "forty-three million, four hundred twenty-eight thousand, three hundred sixty-seven".