42908168 has 16 divisors (see below), whose sum is σ = 83227500. Its totient is φ = 20714176.

The previous prime is 42908143. The next prime is 42908171. The reversal of 42908168 is 86180924.

It can be written as a sum of positive squares in 2 ways, for example, as 36747844 + 6160324 = 6062^2 + 2482^2 .

It is a super-2 number, since 2×42908168² = 3682221762232448, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92243 + ... + 92706.

Almost surely, 2^42908168 is an apocalyptic number.

It is an amenable number.

42908168 is a deficient number, since it is larger than the sum of its proper divisors (40319332).

42908168 is a wasteful number, since it uses less digits than its factorization.

42908168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184984 (or 184980 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 42908168 is about 6550.4326574662. The cubic root of 42908168 is about 350.0902297980.

The spelling of 42908168 in words is "forty-two million, nine hundred eight thousand, one hundred sixty-eight".