42572445 has 16 divisors (see below), whose sum is σ = 71701440. Its totient is φ = 21510144.

The previous prime is 42572441. The next prime is 42572447. The reversal of 42572445 is 54427524.

42572445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42572445 - 2² = 42572441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42572441) 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 15 ways as a sum of consecutive naturals, for example, 74404 + ... + 74973.

It is an arithmetic number, because the mean of its divisors is an integer number (4481340).

Almost surely, 2^42572445 is an apocalyptic number.

It is an amenable number.

42572445 is a deficient number, since it is larger than the sum of its proper divisors (29128995).

42572445 is a wasteful number, since it uses less digits than its factorization.

42572445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149404.

The product of its digits is 44800, while the sum is 33.

The square root of 42572445 is about 6524.7563172888. The cubic root of 42572445 is about 349.1747769230.

Adding to 42572445 its reverse (54427524), we get a palindrome (96999969).

The spelling of 42572445 in words is "forty-two million, five hundred seventy-two thousand, four hundred forty-five".