42366605 has 4 divisors (see below), whose sum is σ = 50839932. Its totient is φ = 33893280.

The previous prime is 42366587. The next prime is 42366617. The reversal of 42366605 is 50666324.

42366605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 17156164 + 25210441 = 4142^2 + 5021^2 .

It is not a de Polignac number, because 42366605 - 2⁸ = 42366349 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 4236656 + ... + 4236665.

It is an arithmetic number, because the mean of its divisors is an integer number (12709983).

Almost surely, 2^42366605 is an apocalyptic number.

It is an amenable number.

42366605 is a deficient number, since it is larger than the sum of its proper divisors (8473327).

42366605 is an equidigital number, since it uses as much as digits as its factorization.

42366605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8473326.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 42366605 is about 6508.9634351408. The cubic root of 42366605 is about 348.6111080471.

The spelling of 42366605 in words is "forty-two million, three hundred sixty-six thousand, six hundred five".