42545822 has 16 divisors (see below), whose sum is σ = 69721344. Its totient is φ = 19311000.

The previous prime is 42545821. The next prime is 42545831. The reversal of 42545822 is 22854524.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42545821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26297 + ... + 27867.

It is an arithmetic number, because the mean of its divisors is an integer number (4357584).

Almost surely, 2^42545822 is an apocalyptic number.

42545822 is a deficient number, since it is larger than the sum of its proper divisors (27175522).

42545822 is a wasteful number, since it uses less digits than its factorization.

42545822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2815.

The product of its digits is 25600, while the sum is 32.

The square root of 42545822 is about 6522.7158454129. The cubic root of 42545822 is about 349.1019753839.

The spelling of 42545822 in words is "forty-two million, five hundred forty-five thousand, eight hundred twenty-two".