42174805 has 8 divisors (see below), whose sum is σ = 50903352. Its totient is φ = 33544128.

The previous prime is 42174763. The next prime is 42174817. The reversal of 42174805 is 50847124.

It can be written as a sum of positive squares in 4 ways, for example, as 5958481 + 36216324 = 2441^2 + 6018^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42174805 - 2⁷ = 42174677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 23514 + ... + 25243.

It is an arithmetic number, because the mean of its divisors is an integer number (6362919).

Almost surely, 2^42174805 is an apocalyptic number.

It is an amenable number.

42174805 is a deficient number, since it is larger than the sum of its proper divisors (8728547).

42174805 is a wasteful number, since it uses less digits than its factorization.

42174805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48935.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 42174805 is about 6494.2131932976. The cubic root of 42174805 is about 348.0842405169.

The spelling of 42174805 in words is "forty-two million, one hundred seventy-four thousand, eight hundred five".