42866180 has 144 divisors (see below), whose sum is σ = 115831296. Its totient is φ = 13224960.

The previous prime is 42866171. The next prime is 42866221. The reversal of 42866180 is 8166824.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 42866180.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 516419 + ... + 516501.

It is an arithmetic number, because the mean of its divisors is an integer number (804384).

Almost surely, 2^42866180 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42866180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57915648).

42866180 is an abundant number, since it is smaller than the sum of its proper divisors (72965116).

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

42866180 is a wasteful number, since it uses less digits than its factorization.

42866180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 42866180 is about 6547.2268938842. The cubic root of 42866180 is about 349.9759983541.

The spelling of 42866180 in words is "forty-two million, eight hundred sixty-six thousand, one hundred eighty".