68308200 has 144 divisors (see below), whose sum is σ = 231910380. Its totient is φ = 18017280.

The previous prime is 68308199. The next prime is 68308213. The reversal of 68308200 is 280386.

It can be written as a sum of positive squares in 6 ways, for example, as 16208676 + 52099524 = 4026^2 + 7218^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 246462 + ... + 246738.

Almost surely, 2^68308200 is an apocalyptic number.

68308200 is a gapful number since it is divisible by the number (60) 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 68308200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115955190).

68308200 is an abundant number, since it is smaller than the sum of its proper divisors (163602180).

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

68308200 is a wasteful number, since it uses less digits than its factorization.

68308200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436 (or 424 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 68308200 is about 8264.8774945549. The cubic root of 68308200 is about 408.7812309555.

Adding to 68308200 its reverse (280386), we get a palindrome (68588586).

The spelling of 68308200 in words is "sixty-eight million, three hundred eight thousand, two hundred".