68305602 has 16 divisors (see below), whose sum is σ = 136840032. Its totient is φ = 22730400.

The previous prime is 68305591. The next prime is 68305619. The reversal of 68305602 is 20650386.

It is a self number, because there is not a number n which added to its sum of digits gives 68305602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5524 + ... + 12927.

It is an arithmetic number, because the mean of its divisors is an integer number (8552502).

Almost surely, 2^68305602 is an apocalyptic number.

68305602 is an abundant number, since it is smaller than the sum of its proper divisors (68534430).

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

68305602 is a wasteful number, since it uses less digits than its factorization.

68305602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19073.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 68305602 is about 8264.7203219468. The cubic root of 68305602 is about 408.7760484293.

Adding to 68305602 its reverse (20650386), we get a palindrome (88955988).

The spelling of 68305602 in words is "sixty-eight million, three hundred five thousand, six hundred two".