42030243 has 12 divisors (see below), whose sum is σ = 61740120. Its totient is φ = 27544896.

The previous prime is 42030227. The next prime is 42030253. The reversal of 42030243 is 34203024.

42030243 is a `hidden beast` number, since 420 + 3 + 0 + 243 = 666.

It is not a de Polignac number, because 42030243 - 2⁴ = 42030227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42030253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39046 + ... + 40107.

It is an arithmetic number, because the mean of its divisors is an integer number (5145010).

Almost surely, 2^42030243 is an apocalyptic number.

42030243 is a deficient number, since it is larger than the sum of its proper divisors (19709877).

42030243 is a wasteful number, since it uses less digits than its factorization.

42030243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79218 (or 79215 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 42030243 is about 6483.0735766301. The cubic root of 42030243 is about 347.6860773865.

Adding to 42030243 its reverse (34203024), we get a palindrome (76233267).

The spelling of 42030243 in words is "forty-two million, thirty thousand, two hundred forty-three".