42005996 has 6 divisors (see below), whose sum is σ = 73510500. Its totient is φ = 21002996.

The previous prime is 42005983. The next prime is 42006037. The reversal of 42005996 is 69950024.

42005996 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 as a sum of consecutive naturals, namely, 5250746 + ... + 5250753.

It is an arithmetic number, because the mean of its divisors is an integer number (12251750).

Almost surely, 2^42005996 is an apocalyptic number.

It is an amenable number.

42005996 is a deficient number, since it is larger than the sum of its proper divisors (31504504).

42005996 is a wasteful number, since it uses less digits than its factorization.

42005996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10501503 (or 10501501 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 42005996 is about 6481.2032833418. The cubic root of 42005996 is about 347.6192051744.

The spelling of 42005996 in words is "forty-two million, five thousand, nine hundred ninety-six".