42025578 has 16 divisors (see below), whose sum is σ = 96058560. Its totient is φ = 12007296.

The previous prime is 42025573. The next prime is 42025579. The reversal of 42025578 is 87552024.

It is a super-2 number, since 2×42025578² = 3532298412468168, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42025573) 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, 500263 + ... + 500346.

It is an arithmetic number, because the mean of its divisors is an integer number (6003660).

Almost surely, 2^42025578 is an apocalyptic number.

42025578 is an abundant number, since it is smaller than the sum of its proper divisors (54032982).

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

42025578 is a wasteful number, since it uses less digits than its factorization.

42025578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000621.

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 42025578 is about 6482.7137835940. The cubic root of 42025578 is about 347.6732135100.

The spelling of 42025578 in words is "forty-two million, twenty-five thousand, five hundred seventy-eight".