42530705 has 16 divisors (see below), whose sum is σ = 58477440. Its totient is φ = 29089152.

The previous prime is 42530701. The next prime is 42530707. The reversal of 42530705 is 50703524.

42530705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 42530705 - 2² = 42530701 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42530701) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 14666 + ... + 17324.

It is an arithmetic number, because the mean of its divisors is an integer number (3654840).

Almost surely, 2^42530705 is an apocalyptic number.

It is an amenable number.

42530705 is a deficient number, since it is larger than the sum of its proper divisors (15946735).

42530705 is a wasteful number, since it uses less digits than its factorization.

42530705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3128.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 42530705 is about 6521.5569460061. The cubic root of 42530705 is about 349.0606238914.

The spelling of 42530705 in words is "forty-two million, five hundred thirty thousand, seven hundred five".