168300000 has 432 divisors, whose sum is σ = 690987024. Its totient is φ = 38400000.

The previous prime is 168299977. The next prime is 168300007. The reversal of 168300000 is 3861.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168300007) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 9899992 + ... + 9900008.

It is an arithmetic number, because the mean of its divisors is an integer number (1599507).

Almost surely, 2^168300000 is an apocalyptic number.

168300000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (345493512).

168300000 is an abundant number, since it is smaller than the sum of its proper divisors (522687024).

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

168300000 is a wasteful number, since it uses less digits than its factorization.

168300000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69 (or 38 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 168300000 is about 12973.0489862638. The cubic root of 168300000 is about 552.1130833223.

Adding to 168300000 its reverse (3861), we get a palindrome (168303861).

The spelling of 168300000 in words is "one hundred sixty-eight million, three hundred thousand".