42040986 has 16 divisors (see below), whose sum is σ = 90549984. Its totient is φ = 12935664.

The previous prime is 42040979. The next prime is 42040993. The reversal of 42040986 is 68904024.

42040986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42040979) and next prime (42040993).

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 7 ways as a sum of consecutive naturals, for example, 269416 + ... + 269571.

It is an arithmetic number, because the mean of its divisors is an integer number (5659374).

Almost surely, 2^42040986 is an apocalyptic number.

42040986 is an abundant number, since it is smaller than the sum of its proper divisors (48508998).

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

42040986 is a wasteful number, since it uses less digits than its factorization.

42040986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539005.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 42040986 is about 6483.9020658859. The cubic root of 42040986 is about 347.7156979095.

The spelling of 42040986 in words is "forty-two million, forty thousand, nine hundred eighty-six".