42071630 has 16 divisors (see below), whose sum is σ = 77490864. Its totient is φ = 16437120.

The previous prime is 42071597. The next prime is 42071633. The reversal of 42071630 is 3617024.

42071630 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 = 42071596 and 42071605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42071633) 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 7 ways as a sum of consecutive naturals, for example, 48491 + ... + 49350.

It is an arithmetic number, because the mean of its divisors is an integer number (4843179).

Almost surely, 2^42071630 is an apocalyptic number.

42071630 is a deficient number, since it is larger than the sum of its proper divisors (35419234).

42071630 is a wasteful number, since it uses less digits than its factorization.

42071630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97891.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 42071630 is about 6486.2647186189. The cubic root of 42071630 is about 347.8001616116.

Adding to 42071630 its reverse (3617024), we get a palindrome (45688654).

The spelling of 42071630 in words is "forty-two million, seventy-one thousand, six hundred thirty".