43525242 has 16 divisors (see below), whose sum is σ = 96722880. Its totient is φ = 14508396.

The previous prime is 43525213. The next prime is 43525249. The reversal of 43525242 is 24252534.

It is a happy number.

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 (43525249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402958 + ... + 403065.

It is an arithmetic number, because the mean of its divisors is an integer number (6045180).

Almost surely, 2^43525242 is an apocalyptic number.

43525242 is an abundant number, since it is smaller than the sum of its proper divisors (53197638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43525242 is a wasteful number, since it uses less digits than its factorization.

43525242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806034 (or 806028 counting only the distinct ones).

The product of its digits is 9600, while the sum is 27.

The square root of 43525242 is about 6597.3662926959. The cubic root of 43525242 is about 351.7604958657.

Adding to 43525242 its reverse (24252534), we get a palindrome (67777776).

The spelling of 43525242 in words is "forty-three million, five hundred twenty-five thousand, two hundred forty-two".