42885305 has 16 divisors (see below), whose sum is σ = 54671760. Its totient is φ = 32182272.

The previous prime is 42885301. The next prime is 42885313. The reversal of 42885305 is 50358824.

It can be written as a sum of positive squares in 8 ways, for example, as 3810304 + 39075001 = 1952^2 + 6251^2 .

It is a cyclic number.

It is not a de Polignac number, because 42885305 - 2² = 42885301 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42885301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32417 + ... + 33713.

It is an arithmetic number, because the mean of its divisors is an integer number (3416985).

Almost surely, 2^42885305 is an apocalyptic number.

It is an amenable number.

42885305 is a deficient number, since it is larger than the sum of its proper divisors (11786455).

42885305 is a wasteful number, since it uses less digits than its factorization.

42885305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1708.

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 42885305 is about 6548.6872730342. The cubic root of 42885305 is about 350.0280385701.

The spelling of 42885305 in words is "forty-two million, eight hundred eighty-five thousand, three hundred five".