68766320 has 160 divisors (see below), whose sum is σ = 201415680. Its totient is φ = 21288960.

The previous prime is 68766319. The next prime is 68766323. The reversal of 68766320 is 2366786.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68766323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 244580 + ... + 244860.

It is an arithmetic number, because the mean of its divisors is an integer number (1258848).

Almost surely, 2^68766320 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 68766320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100707840).

68766320 is an abundant number, since it is smaller than the sum of its proper divisors (132649360).

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

68766320 is a wasteful number, since it uses less digits than its factorization.

68766320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 337 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 68766320 is about 8292.5460505203. The cubic root of 68766320 is about 409.6930480645.

The spelling of 68766320 in words is "sixty-eight million, seven hundred sixty-six thousand, three hundred twenty".