68680236 has 48 divisors (see below), whose sum is σ = 167005440. Its totient is φ = 21940800.

The previous prime is 68680223. The next prime is 68680243. The reversal of 68680236 is 63208686.

It is a junction number, because it is equal to n+sod(n) for n = 68680194 and 68680203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51895 + ... + 53201.

It is an arithmetic number, because the mean of its divisors is an integer number (3479280).

Almost surely, 2^68680236 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 68680236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83502720).

68680236 is an abundant number, since it is smaller than the sum of its proper divisors (98325204).

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

68680236 is a wasteful number, since it uses less digits than its factorization.

68680236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494 (or 1492 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 68680236 is about 8287.3539806141. The cubic root of 68680236 is about 409.5220208177.

The spelling of 68680236 in words is "sixty-eight million, six hundred eighty thousand, two hundred thirty-six".