68420968 has 64 divisors (see below), whose sum is σ = 165150720. Its totient is φ = 25790400.

The previous prime is 68420959. The next prime is 68420977. The reversal of 68420968 is 86902486.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (68420959) and next prime (68420977).

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, 17305 + ... + 20887.

It is an arithmetic number, because the mean of its divisors is an integer number (2580480).

Almost surely, 2^68420968 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 68420968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82575360).

68420968 is an abundant number, since it is smaller than the sum of its proper divisors (96729752).

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

68420968 is a wasteful number, since it uses less digits than its factorization.

68420968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3638 (or 3634 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 68420968 is about 8271.6968029540. The cubic root of 68420968 is about 409.0060555891.

The spelling of 68420968 in words is "sixty-eight million, four hundred twenty thousand, nine hundred sixty-eight".