68908308 has 36 divisors (see below), whose sum is σ = 187038432. Its totient is φ = 19687920.

The previous prime is 68908297. The next prime is 68908309. The reversal of 68908308 is 80380986.

It is a super-2 number, since 2×68908308² = 9496709822845728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 68908308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68908309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58008 + ... + 59183.

It is an arithmetic number, because the mean of its divisors is an integer number (5195512).

Almost surely, 2^68908308 is an apocalyptic number.

It is an amenable number.

68908308 is an abundant number, since it is smaller than the sum of its proper divisors (118130124).

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

68908308 is a wasteful number, since it uses less digits than its factorization.

68908308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117212 (or 117203 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 68908308 is about 8301.1028183007. The cubic root of 68908308 is about 409.9748308960.

The spelling of 68908308 in words is "sixty-eight million, nine hundred eight thousand, three hundred eight".