68210730 has 48 divisors (see below), whose sum is σ = 202685184. Its totient is φ = 15590880.

The previous prime is 68210719. The next prime is 68210731. The reversal of 68210730 is 3701286.

It is a junction number, because it is equal to n+sod(n) for n = 68210694 and 68210703.

It is not an unprimeable number, because it can be changed into a prime (68210731) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53506 + ... + 54765.

It is an arithmetic number, because the mean of its divisors is an integer number (4222608).

Almost surely, 2^68210730 is an apocalyptic number.

68210730 is an abundant number, since it is smaller than the sum of its proper divisors (134474454).

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

68210730 is a wasteful number, since it uses less digits than its factorization.

68210730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108291 (or 108288 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 68210730 is about 8258.9787504267. The cubic root of 68210730 is about 408.5867063698.

The spelling of 68210730 in words is "sixty-eight million, two hundred ten thousand, seven hundred thirty".