43522045 has 24 divisors (see below), whose sum is σ = 61047000. Its totient is φ = 29699712.

The previous prime is 43522007. The next prime is 43522051. The reversal of 43522045 is 54022534.

It can be written as a sum of positive squares in 4 ways, for example, as 14394436 + 29127609 = 3794^2 + 5397^2 .

It is not a de Polignac number, because 43522045 - 2⁷ = 43521917 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85251 + ... + 85759.

It is an arithmetic number, because the mean of its divisors is an integer number (2543625).

Almost surely, 2^43522045 is an apocalyptic number.

It is an amenable number.

43522045 is a deficient number, since it is larger than the sum of its proper divisors (17524955).

43522045 is a wasteful number, since it uses less digits than its factorization.

43522045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877 (or 870 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 43522045 is about 6597.1239945904. The cubic root of 43522045 is about 351.7518831941.

Adding to 43522045 its reverse (54022534), we get a palindrome (97544579).

The spelling of 43522045 in words is "forty-three million, five hundred twenty-two thousand, forty-five".