68342880 has 48 divisors (see below), whose sum is σ = 215281584. Its totient is φ = 18224640.

The previous prime is 68342863. The next prime is 68342887. The reversal of 68342880 is 8824386.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68342887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70711 + ... + 71670.

It is an arithmetic number, because the mean of its divisors is an integer number (4485033).

Almost surely, 2^68342880 is an apocalyptic number.

68342880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68342880 is an abundant number, since it is smaller than the sum of its proper divisors (146938704).

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

68342880 is a wasteful number, since it uses less digits than its factorization.

68342880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142399 (or 142391 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 68342880 is about 8266.9752630572. The cubic root of 68342880 is about 408.8503985158.

The spelling of 68342880 in words is "sixty-eight million, three hundred forty-two thousand, eight hundred eighty".