42106572 has 18 divisors (see below), whose sum is σ = 106436148. Its totient is φ = 14035512.

The previous prime is 42106541. The next prime is 42106613. The reversal of 42106572 is 27560124.

42106572 is a `hidden beast` number, since 4 + 2 + 1 + 0 + 657 + 2 = 666.

42106572 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

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 5 ways as a sum of consecutive naturals, for example, 584778 + ... + 584849.

Almost surely, 2^42106572 is an apocalyptic number.

It is an amenable number.

42106572 is an abundant number, since it is smaller than the sum of its proper divisors (64329576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42106572 is a wasteful number, since it uses less digits than its factorization.

42106572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169637 (or 1169632 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 42106572 is about 6488.9576975043. The cubic root of 42106572 is about 347.8964218100.

Adding to 42106572 its reverse (27560124), we get a palindrome (69666696).

The spelling of 42106572 in words is "forty-two million, one hundred six thousand, five hundred seventy-two".