42490868 has 12 divisors (see below), whose sum is σ = 84981792. Its totient is φ = 18210360.

The previous prime is 42490849. The next prime is 42490907. The reversal of 42490868 is 86809424.

42490868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

42490868 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 758738 + ... + 758793.

It is an arithmetic number, because the mean of its divisors is an integer number (7081816).

Almost surely, 2^42490868 is an apocalyptic number.

It is an amenable number.

42490868 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42490868 is a wasteful number, since it uses less digits than its factorization.

42490868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517542 (or 1517540 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 42490868 is about 6518.5019751474. The cubic root of 42490868 is about 348.9516056191.

The spelling of 42490868 in words is "forty-two million, four hundred ninety thousand, eight hundred sixty-eight".