42530706 has 12 divisors (see below), whose sum is σ = 92149902. Its totient is φ = 14176896.

The previous prime is 42530701. The next prime is 42530707. The reversal of 42530706 is 60703524.

It is a happy number.

42530706 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 41409225 + 1121481 = 6435^2 + 1059^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42530706.

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 5 ways as a sum of consecutive naturals, for example, 1181391 + ... + 1181426.

Almost surely, 2^42530706 is an apocalyptic number.

42530706 is an abundant number, since it is smaller than the sum of its proper divisors (49619196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42530706 is a wasteful number, since it uses less digits than its factorization.

42530706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2362825 (or 2362822 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 42530706 is about 6521.5570226749. The cubic root of 42530706 is about 349.0606266271.

The spelling of 42530706 in words is "forty-two million, five hundred thirty thousand, seven hundred six".