68080992 has 144 divisors (see below), whose sum is σ = 213563952. Its totient is φ = 18923520.

The previous prime is 68080981. The next prime is 68080993. The reversal of 68080992 is 29908086.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68080993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 192688 + ... + 193040.

It is an arithmetic number, because the mean of its divisors is an integer number (1483083).

Almost surely, 2^68080992 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 68080992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106781976).

68080992 is an abundant number, since it is smaller than the sum of its proper divisors (145482960).

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

68080992 is a wasteful number, since it uses less digits than its factorization.

68080992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421 (or 406 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 68080992 is about 8251.1206511601. The cubic root of 68080992 is about 408.3274956082.

The spelling of 68080992 in words is "sixty-eight million, eighty thousand, nine hundred ninety-two".