42621112 has 32 divisors (see below), whose sum is σ = 81861120. Its totient is φ = 20797920.

The previous prime is 42621107. The next prime is 42621113. The reversal of 42621112 is 21112624.

It is a self number, because there is not a number n which added to its sum of digits gives 42621112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42621113) by changing a digit.

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, 69913 + ... + 70519.

It is an arithmetic number, because the mean of its divisors is an integer number (2558160).

Almost surely, 2^42621112 is an apocalyptic number.

It is an amenable number.

42621112 is a deficient number, since it is larger than the sum of its proper divisors (39240008).

42621112 is a wasteful number, since it uses less digits than its factorization.

42621112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811 (or 807 counting only the distinct ones).

The product of its digits is 192, while the sum is 19.

The square root of 42621112 is about 6528.4846633809. The cubic root of 42621112 is about 349.3077801495.

Adding to 42621112 its reverse (21112624), we get a palindrome (63733736).

The spelling of 42621112 in words is "forty-two million, six hundred twenty-one thousand, one hundred twelve".