68668410 has 64 divisors (see below), whose sum is σ = 173850624. Its totient is φ = 17332800.

The previous prime is 68668403. The next prime is 68668417. The reversal of 68668410 is 1486686.

It is an interprime number because it is at equal distance from previous prime (68668403) and next prime (68668417).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (68668417) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42925 + ... + 44495.

It is an arithmetic number, because the mean of its divisors is an integer number (2716416).

Almost surely, 2^68668410 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68668410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86925312).

68668410 is an abundant number, since it is smaller than the sum of its proper divisors (105182214).

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

68668410 is a wasteful number, since it uses less digits than its factorization.

68668410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 68668410 is about 8286.6404531632. The cubic root of 68668410 is about 409.4985143686.

It can be divided in two parts, 686 and 68410, that added together give a palindrome (69096).

The spelling of 68668410 in words is "sixty-eight million, six hundred sixty-eight thousand, four hundred ten".