43405045 has 4 divisors (see below), whose sum is σ = 52086060. Its totient is φ = 34724032.

The previous prime is 43405013. The next prime is 43405051. The reversal of 43405045 is 54050434.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24820324 + 18584721 = 4982^2 + 4311^2 .

It is a cyclic number.

It is not a de Polignac number, because 43405045 - 2⁵ = 43405013 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4340500 + ... + 4340509.

It is an arithmetic number, because the mean of its divisors is an integer number (13021515).

Almost surely, 2^43405045 is an apocalyptic number.

It is an amenable number.

43405045 is a deficient number, since it is larger than the sum of its proper divisors (8681015).

43405045 is an equidigital number, since it uses as much as digits as its factorization.

43405045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8681014.

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

The square root of 43405045 is about 6588.2505265055. The cubic root of 43405045 is about 351.4363963002.

Adding to 43405045 its reverse (54050434), we get a palindrome (97455479).

The spelling of 43405045 in words is "forty-three million, four hundred five thousand, forty-five".