168540246 has 24 divisors (see below), whose sum is σ = 417338064. Its totient is φ = 48154320.

The previous prime is 168540221. The next prime is 168540247. The reversal of 168540246 is 642045861.

It is a self number, because there is not a number n which added to its sum of digits gives 168540246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168540247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 668685 + ... + 668936.

It is an arithmetic number, because the mean of its divisors is an integer number (17389086).

Almost surely, 2^168540246 is an apocalyptic number.

168540246 is an abundant number, since it is smaller than the sum of its proper divisors (248797818).

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

168540246 is a wasteful number, since it uses less digits than its factorization.

168540246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337636 (or 1337633 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 168540246 is about 12982.3051111888. The cubic root of 168540246 is about 552.3756697641.

The spelling of 168540246 in words is "one hundred sixty-eight million, five hundred forty thousand, two hundred forty-six".