42530293 has 4 divisors (see below), whose sum is σ = 45801868. Its totient is φ = 39258720.

The previous prime is 42530291. The next prime is 42530297. The reversal of 42530293 is 39203524.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16703569 + 25826724 = 4087^2 + 5082^2 .

It is a cyclic number.

It is not a de Polignac number, because 42530293 - 2¹ = 42530291 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42530291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1635768 + ... + 1635793.

It is an arithmetic number, because the mean of its divisors is an integer number (11450467).

Almost surely, 2^42530293 is an apocalyptic number.

It is an amenable number.

42530293 is a deficient number, since it is larger than the sum of its proper divisors (3271575).

42530293 is a wasteful number, since it uses less digits than its factorization.

42530293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3271574.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 42530293 is about 6521.5253583805. The cubic root of 42530293 is about 349.0594967571.

The spelling of 42530293 in words is "forty-two million, five hundred thirty thousand, two hundred ninety-three".