42056030 has 32 divisors (see below), whose sum is σ = 78257664. Its totient is φ = 16263936.

The previous prime is 42056009. The next prime is 42056041. The reversal of 42056030 is 3065024.

42056030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 42055993 and 42056011.

It is a congruent number.

It is an unprimeable number.

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, 38147 + ... + 39233.

It is an arithmetic number, because the mean of its divisors is an integer number (2445552).

Almost surely, 2^42056030 is an apocalyptic number.

42056030 is a deficient number, since it is larger than the sum of its proper divisors (36201634).

42056030 is a wasteful number, since it uses less digits than its factorization.

42056030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220.

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

The square root of 42056030 is about 6485.0620660099. The cubic root of 42056030 is about 347.7571686393.

The spelling of 42056030 in words is "forty-two million, fifty-six thousand, thirty", and thus it is an eban number.