168268842 has 72 divisors (see below), whose sum is σ = 428309856. Its totient is φ = 47600784.

The previous prime is 168268819. The next prime is 168268843. The reversal of 168268842 is 248862861.

It is not an unprimeable number, because it can be changed into a prime (168268843) 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 35 ways as a sum of consecutive naturals, for example, 93483 + ... + 95265.

It is an arithmetic number, because the mean of its divisors is an integer number (5948748).

Almost surely, 2^168268842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168268842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214154928).

168268842 is an abundant number, since it is smaller than the sum of its proper divisors (260041014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168268842 is a wasteful number, since it uses less digits than its factorization.

168268842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1912 (or 1902 counting only the distinct ones).

The product of its digits is 294912, while the sum is 45.

The square root of 168268842 is about 12971.8480564644. The cubic root of 168268842 is about 552.0790096420.

The spelling of 168268842 in words is "one hundred sixty-eight million, two hundred sixty-eight thousand, eight hundred forty-two".