168042502 has 16 divisors (see below), whose sum is σ = 259232400. Its totient is φ = 81664000.

The previous prime is 168042491. The next prime is 168042503. The reversal of 168042502 is 205240861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168042503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2502 + ... + 18502.

It is an arithmetic number, because the mean of its divisors is an integer number (16202025).

Almost surely, 2^168042502 is an apocalyptic number.

168042502 is a deficient number, since it is larger than the sum of its proper divisors (91189898).

168042502 is a wasteful number, since it uses less digits than its factorization.

168042502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16151.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 168042502 is about 12963.1208433772. The cubic root of 168042502 is about 551.8313630176.

It can be divided in two parts, 16804 and 2502, that added together give a triangular number (19306 = T₁₉₆).

The spelling of 168042502 in words is "one hundred sixty-eight million, forty-two thousand, five hundred two".