42180236 has 24 divisors (see below), whose sum is σ = 84500640. Its totient is φ = 18047232.

The previous prime is 42180217. The next prime is 42180241. The reversal of 42180236 is 63208124.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27506 + ... + 28998.

It is an arithmetic number, because the mean of its divisors is an integer number (3520860).

Almost surely, 2^42180236 is an apocalyptic number.

It is an amenable number.

42180236 is an abundant number, since it is smaller than the sum of its proper divisors (42320404).

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

42180236 is a wasteful number, since it uses less digits than its factorization.

42180236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2513 (or 2511 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 42180236 is about 6494.6313213299. The cubic root of 42180236 is about 348.0991812252.

The spelling of 42180236 in words is "forty-two million, one hundred eighty thousand, two hundred thirty-six".