42244805 has 8 divisors (see below), whose sum is σ = 50957592. Its totient is φ = 33619968.

The previous prime is 42244799. The next prime is 42244823. The reversal of 42244805 is 50844224.

It can be written as a sum of positive squares in 4 ways, for example, as 693889 + 41550916 = 833^2 + 6446^2 .

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 42244805 - 2⁴ = 42244789 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, 20924 + ... + 22853.

It is an arithmetic number, because the mean of its divisors is an integer number (6369699).

Almost surely, 2^42244805 is an apocalyptic number.

It is an amenable number.

42244805 is a deficient number, since it is larger than the sum of its proper divisors (8712787).

42244805 is a wasteful number, since it uses less digits than its factorization.

42244805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43975.

The product of its (nonzero) digits is 10240, while the sum is 29.

The square root of 42244805 is about 6499.6003723306. The cubic root of 42244805 is about 348.2767126872.

The spelling of 42244805 in words is "forty-two million, two hundred forty-four thousand, eight hundred five".