43442605 has 4 divisors (see below), whose sum is σ = 52131132. Its totient is φ = 34754080.

The previous prime is 43442593. The next prime is 43442611. The reversal of 43442605 is 50624434.

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 9126441 + 34316164 = 3021^2 + 5858^2 .

It is not a de Polignac number, because 43442605 - 2⁵ = 43442573 is a prime.

It is a Duffinian number.

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, 4344256 + ... + 4344265.

It is an arithmetic number, because the mean of its divisors is an integer number (13032783).

Almost surely, 2^43442605 is an apocalyptic number.

It is an amenable number.

43442605 is a deficient number, since it is larger than the sum of its proper divisors (8688527).

43442605 is an equidigital number, since it uses as much as digits as its factorization.

43442605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8688526.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 43442605 is about 6591.1004392286. The cubic root of 43442605 is about 351.5377374032.

The spelling of 43442605 in words is "forty-three million, four hundred forty-two thousand, six hundred five".