42030506 has 16 divisors (see below), whose sum is σ = 72138816. Its totient is φ = 17991456.

The previous prime is 42030497. The next prime is 42030533. The reversal of 42030506 is 60503024.

It is a Curzon number.

It is a zygodrome in base 4.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17150 + ... + 19446.

It is an arithmetic number, because the mean of its divisors is an integer number (4508676).

Almost surely, 2^42030506 is an apocalyptic number.

42030506 is a deficient number, since it is larger than the sum of its proper divisors (30108310).

42030506 is a wasteful number, since it uses less digits than its factorization.

42030506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3613.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 42030506 is about 6483.0938601874. The cubic root of 42030506 is about 347.6868025885.

The spelling of 42030506 in words is "forty-two million, thirty thousand, five hundred six".