42918180 has 24 divisors (see below), whose sum is σ = 120171072. Its totient is φ = 11444832.

The previous prime is 42918179. The next prime is 42918199. The reversal of 42918180 is 8181924.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357592 + ... + 357711.

It is an arithmetic number, because the mean of its divisors is an integer number (5007128).

Almost surely, 2^42918180 is an apocalyptic number.

It is an amenable number.

42918180 is an abundant number, since it is smaller than the sum of its proper divisors (77252892).

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

42918180 is a wasteful number, since it uses less digits than its factorization.

42918180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715315 (or 715313 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 42918180 is about 6551.1968372199. The cubic root of 42918180 is about 350.1174571765.

The spelling of 42918180 in words is "forty-two million, nine hundred eighteen thousand, one hundred eighty".