42104180 has 12 divisors (see below), whose sum is σ = 88418820. Its totient is φ = 16841664.

The previous prime is 42104177. The next prime is 42104203. The reversal of 42104180 is 8140124.

It can be written as a sum of positive squares in 2 ways, for example, as 9909904 + 32194276 = 3148^2 + 5674^2 .

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: 2105209 = 42104180 / (4 + 2 + 1 + 0 + 4 + 1 + 8 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1052585 + ... + 1052624.

It is an arithmetic number, because the mean of its divisors is an integer number (7368235).

Almost surely, 2^42104180 is an apocalyptic number.

It is an amenable number.

42104180 is an abundant number, since it is smaller than the sum of its proper divisors (46314640).

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

42104180 is a wasteful number, since it uses less digits than its factorization.

42104180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2105218 (or 2105216 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 42104180 is about 6488.7733817726. The cubic root of 42104180 is about 347.8898338914.

The spelling of 42104180 in words is "forty-two million, one hundred four thousand, one hundred eighty".