68174720 has 64 divisors (see below), whose sum is σ = 167443200. Its totient is φ = 26523648.

The previous prime is 68174719. The next prime is 68174723. The reversal of 68174720 is 2747186.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68174723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22241 + ... + 25119.

It is an arithmetic number, because the mean of its divisors is an integer number (2616300).

Almost surely, 2^68174720 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 68174720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83721600).

68174720 is an abundant number, since it is smaller than the sum of its proper divisors (99268480).

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

68174720 is a wasteful number, since it uses less digits than its factorization.

68174720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2935 (or 2923 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 68174720 is about 8256.7984110065. The cubic root of 68174720 is about 408.5147929665.

The spelling of 68174720 in words is "sixty-eight million, one hundred seventy-four thousand, seven hundred twenty".