42545922 has 16 divisors (see below), whose sum is σ = 85603392. Its totient is φ = 14096720.

The previous prime is 42545891. The next prime is 42545927. The reversal of 42545922 is 22954524.

It is not an unprimeable number, because it can be changed into a prime (42545927) 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, 20229 + ... + 22232.

It is an arithmetic number, because the mean of its divisors is an integer number (5350212).

Almost surely, 2^42545922 is an apocalyptic number.

42545922 is an abundant number, since it is smaller than the sum of its proper divisors (43057470).

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

42545922 is a wasteful number, since it uses less digits than its factorization.

42545922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42633.

The product of its digits is 28800, while the sum is 33.

The square root of 42545922 is about 6522.7235109270. The cubic root of 42545922 is about 349.1022488943.

The spelling of 42545922 in words is "forty-two million, five hundred forty-five thousand, nine hundred twenty-two".