68323420 has 48 divisors (see below), whose sum is σ = 161935200. Its totient is φ = 23985920.

The previous prime is 68323399. The next prime is 68323421. The reversal of 68323420 is 2432386.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68323421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1026 + ... + 11734.

It is an arithmetic number, because the mean of its divisors is an integer number (3373650).

Almost surely, 2^68323420 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 68323420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80967600).

68323420 is an abundant number, since it is smaller than the sum of its proper divisors (93611780).

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

68323420 is a wasteful number, since it uses less digits than its factorization.

68323420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10758 (or 10756 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 68323420 is about 8265.7982070699. The cubic root of 68323420 is about 408.8115893814.

The spelling of 68323420 in words is "sixty-eight million, three hundred twenty-three thousand, four hundred twenty".