68207328 has 144 divisors (see below), whose sum is σ = 231469056. Its totient is φ = 18627840.

The previous prime is 68207327. The next prime is 68207329. The reversal of 68207328 is 82370286.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (68207327) and next prime (68207329).

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 68207292 and 68207301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68207327) 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, 45633 + ... + 47103.

It is an arithmetic number, because the mean of its divisors is an integer number (1607424).

Almost surely, 2^68207328 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 68207328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115734528).

68207328 is an abundant number, since it is smaller than the sum of its proper divisors (163261728).

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

68207328 is a wasteful number, since it uses less digits than its factorization.

68207328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1517 (or 1506 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 68207328 is about 8258.7727901910. The cubic root of 68207328 is about 408.5799135231.

The spelling of 68207328 in words is "sixty-eight million, two hundred seven thousand, three hundred twenty-eight".