68312322 has 80 divisors (see below), whose sum is σ = 166689600. Its totient is φ = 20785248.

The previous prime is 68312317. The next prime is 68312357. The reversal of 68312322 is 22321386.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 343179 + ... + 343377.

It is an arithmetic number, because the mean of its divisors is an integer number (2083620).

Almost surely, 2^68312322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68312322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83344800).

68312322 is an abundant number, since it is smaller than the sum of its proper divisors (98377278).

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

68312322 is a wasteful number, since it uses less digits than its factorization.

68312322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389 (or 380 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 68312322 is about 8265.1268592805. The cubic root of 68312322 is about 408.7894533082.

The spelling of 68312322 in words is "sixty-eight million, three hundred twelve thousand, three hundred twenty-two".