42442986 has 16 divisors (see below), whose sum is σ = 85018464. Its totient is φ = 14125584.

The previous prime is 42442969. The next prime is 42442993. The reversal of 42442986 is 68924424.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1081 + ... + 9276.

It is an arithmetic number, because the mean of its divisors is an integer number (5313654).

Almost surely, 2^42442986 is an apocalyptic number.

42442986 is an abundant number, since it is smaller than the sum of its proper divisors (42575478).

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

42442986 is a wasteful number, since it uses less digits than its factorization.

42442986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11045.

The product of its digits is 110592, while the sum is 39.

The square root of 42442986 is about 6514.8281635052. The cubic root of 42442986 is about 348.8204811238.

The spelling of 42442986 in words is "forty-two million, four hundred forty-two thousand, nine hundred eighty-six".