68236308 has 144 divisors (see below), whose sum is σ = 210153216. Its totient is φ = 18247680.

The previous prime is 68236291. The next prime is 68236309. The reversal of 68236308 is 80363286.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68236309) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 353460 + ... + 353652.

Almost surely, 2^68236308 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68236308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105076608).

68236308 is an abundant number, since it is smaller than the sum of its proper divisors (141916908).

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

68236308 is a wasteful number, since it uses less digits than its factorization.

68236308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 68236308 is about 8260.5271018259. The cubic root of 68236308 is about 408.6377712816.

It can be divided in two parts, 6823 and 6308, that added together give a palindrome (13131).

The spelling of 68236308 in words is "sixty-eight million, two hundred thirty-six thousand, three hundred eight".