42031168 has 14 divisors (see below), whose sum is σ = 83405726. Its totient is φ = 21015552.

The previous prime is 42031159. The next prime is 42031181. The reversal of 42031168 is 86113024.

It can be written as a sum of positive squares in only one way, i.e., 36869184 + 5161984 = 6072^2 + 2272^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328305 + ... + 328432.

Almost surely, 2^42031168 is an apocalyptic number.

It is an amenable number.

42031168 is a deficient number, since it is larger than the sum of its proper divisors (41374558).

42031168 is an equidigital number, since it uses as much as digits as its factorization.

42031168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656749 (or 656739 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 42031168 is about 6483.1449158568. The cubic root of 42031168 is about 347.6886279885.

The spelling of 42031168 in words is "forty-two million, thirty-one thousand, one hundred sixty-eight".