42186888 has 48 divisors (see below), whose sum is σ = 116204400. Its totient is φ = 13822560.

The previous prime is 42186883. The next prime is 42186889. The reversal of 42186888 is 88868124.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (42186883) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 718 + ... + 9213.

It is an arithmetic number, because the mean of its divisors is an integer number (2420925).

Almost surely, 2^42186888 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 42186888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58102200).

42186888 is an abundant number, since it is smaller than the sum of its proper divisors (74017512).

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

42186888 is a wasteful number, since it uses less digits than its factorization.

42186888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10002 (or 9995 counting only the distinct ones).

The product of its digits is 196608, while the sum is 45.

The square root of 42186888 is about 6495.1434164305. The cubic root of 42186888 is about 348.1174791633.

The spelling of 42186888 in words is "forty-two million, one hundred eighty-six thousand, eight hundred eighty-eight".