42358866 has 64 divisors (see below), whose sum is σ = 103057920. Its totient is φ = 11439360.

The previous prime is 42358861. The next prime is 42358867. The reversal of 42358866 is 66885324.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42358861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20325 + ... + 22311.

It is an arithmetic number, because the mean of its divisors is an integer number (1610280).

Almost surely, 2^42358866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42358866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51528960).

42358866 is an abundant number, since it is smaller than the sum of its proper divisors (60699054).

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

42358866 is a wasteful number, since it uses less digits than its factorization.

42358866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039.

The product of its digits is 276480, while the sum is 42.

The square root of 42358866 is about 6508.3689200905. The cubic root of 42358866 is about 348.5898801196.

The spelling of 42358866 in words is "forty-two million, three hundred fifty-eight thousand, eight hundred sixty-six".