168862642 has 32 divisors (see below), whose sum is σ = 293852160. Its totient is φ = 72135360.

The previous prime is 168862627. The next prime is 168862643. The reversal of 168862642 is 246268861.

It is not an unprimeable number, because it can be changed into a prime (168862643) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 13984 + ... + 23092.

It is an arithmetic number, because the mean of its divisors is an integer number (9182880).

Almost surely, 2^168862642 is an apocalyptic number.

168862642 is a deficient number, since it is larger than the sum of its proper divisors (124989518).

168862642 is a wasteful number, since it uses less digits than its factorization.

168862642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9178.

The product of its digits is 221184, while the sum is 43.

The square root of 168862642 is about 12994.7159260986. The cubic root of 168862642 is about 552.7276535003.

The spelling of 168862642 in words is "one hundred sixty-eight million, eight hundred sixty-two thousand, six hundred forty-two".