42500180 has 12 divisors (see below), whose sum is σ = 89250420. Its totient is φ = 17000064.

The previous prime is 42500179. The next prime is 42500191. The reversal of 42500180 is 8100524.

It can be written as a sum of positive squares in 2 ways, for example, as 6091024 + 36409156 = 2468^2 + 6034^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 2125009 = 42500180 / (4 + 2 + 5 + 0 + 0 + 1 + 8 + 0).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1062485 + ... + 1062524.

It is an arithmetic number, because the mean of its divisors is an integer number (7437535).

Almost surely, 2^42500180 is an apocalyptic number.

It is an amenable number.

42500180 is an abundant number, since it is smaller than the sum of its proper divisors (46750240).

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

42500180 is a wasteful number, since it uses less digits than its factorization.

42500180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125018 (or 2125016 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 42500180 is about 6519.2162105578. The cubic root of 42500180 is about 348.9770950176.

The spelling of 42500180 in words is "forty-two million, five hundred thousand, one hundred eighty".