43242645 has 64 divisors (see below), whose sum is σ = 78257664. Its totient is φ = 20275200.

The previous prime is 43242601. The next prime is 43242653. The reversal of 43242645 is 54624234.

43242645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 43242645 - 2⁷ = 43242517 is a prime.

It is a Curzon number.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 428095 + ... + 428195.

It is an arithmetic number, because the mean of its divisors is an integer number (1222776).

Almost surely, 2^43242645 is an apocalyptic number.

It is an amenable number.

43242645 is a deficient number, since it is larger than the sum of its proper divisors (35015019).

43242645 is a wasteful number, since it uses less digits than its factorization.

43242645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222.

The product of its digits is 23040, while the sum is 30.

The square root of 43242645 is about 6575.9140049122. The cubic root of 43242645 is about 350.9975487041.

Adding to 43242645 its reverse (54624234), we get a palindrome (97866879).

The spelling of 43242645 in words is "forty-three million, two hundred forty-two thousand, six hundred forty-five".