68780376 has 96 divisors (see below), whose sum is σ = 214156800. Its totient is φ = 19535040.

The previous prime is 68780333. The next prime is 68780377. The reversal of 68780376 is 67308786.

68780376 = 413² + 414² + ... + 651².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68780377) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120171 + ... + 120741.

It is an arithmetic number, because the mean of its divisors is an integer number (2230800).

Almost surely, 2^68780376 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 68780376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107078400).

68780376 is an abundant number, since it is smaller than the sum of its proper divisors (145376424).

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

68780376 is a wasteful number, since it uses less digits than its factorization.

68780376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829 (or 822 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 68780376 is about 8293.3935153229. The cubic root of 68780376 is about 409.7209602419.

The spelling of 68780376 in words is "sixty-eight million, seven hundred eighty thousand, three hundred seventy-six".