168332742 has 80 divisors (see below), whose sum is σ = 420528240. Its totient is φ = 50015232.

The previous prime is 168332741. The next prime is 168332783. The reversal of 168332742 is 247233861.

It is a happy number.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 168332697 and 168332706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168332741) 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 39 ways as a sum of consecutive naturals, for example, 50718 + ... + 53934.

It is an arithmetic number, because the mean of its divisors is an integer number (5256603).

Almost surely, 2^168332742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168332742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210264120).

168332742 is an abundant number, since it is smaller than the sum of its proper divisors (252195498).

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

168332742 is a wasteful number, since it uses less digits than its factorization.

168332742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3267 (or 3258 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 168332742 is about 12974.3108487503. The cubic root of 168332742 is about 552.1488846976.

The spelling of 168332742 in words is "one hundred sixty-eight million, three hundred thirty-two thousand, seven hundred forty-two".