42066486 has 128 divisors (see below), whose sum is σ = 119070720. Its totient is φ = 10692000.

The previous prime is 42066481. The next prime is 42066491. The reversal of 42066486 is 68466024.

It is a happy number.

42066486 is a `hidden beast` number, since 4 + 2 + 0 + 6 + 648 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (42066481) and next prime (42066491).

It is a self number, because there is not a number n which added to its sum of digits gives 42066486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42066481) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 278511 + ... + 278661.

It is an arithmetic number, because the mean of its divisors is an integer number (930240).

Almost surely, 2^42066486 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42066486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59535360).

42066486 is an abundant number, since it is smaller than the sum of its proper divisors (77004234).

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

42066486 is a wasteful number, since it uses less digits than its factorization.

42066486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 42066486 is about 6485.8681762737. The cubic root of 42066486 is about 347.7859861292.

The spelling of 42066486 in words is "forty-two million, sixty-six thousand, four hundred eighty-six".