168768810 has 48 divisors (see below), whose sum is σ = 501486336. Its totient is φ = 38575584.

The previous prime is 168768791. The next prime is 168768827. The reversal of 168768810 is 18867861.

It is a super-2 number, since 2×168768810² = 56965822457632200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 133314 + ... + 134573.

It is an arithmetic number, because the mean of its divisors is an integer number (10447632).

Almost surely, 2^168768810 is an apocalyptic number.

168768810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168768810 is an abundant number, since it is smaller than the sum of its proper divisors (332717526).

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

168768810 is a wasteful number, since it uses less digits than its factorization.

168768810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267907 (or 267904 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 168768810 is about 12991.1050338299. The cubic root of 168768810 is about 552.6252563688.

The spelling of 168768810 in words is "one hundred sixty-eight million, seven hundred sixty-eight thousand, eight hundred ten".