68410720 has 96 divisors (see below), whose sum is σ = 195628608. Its totient is φ = 22069248.

The previous prime is 68410691. The next prime is 68410723. The reversal of 68410720 is 2701486.

It is a super-2 number, since 2×68410720² = 9360053221836800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68410723) 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, 17244 + ... + 20836.

It is an arithmetic number, because the mean of its divisors is an integer number (2037798).

Almost surely, 2^68410720 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 68410720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97814304).

68410720 is an abundant number, since it is smaller than the sum of its proper divisors (127217888).

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

68410720 is a wasteful number, since it uses less digits than its factorization.

68410720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3632 (or 3624 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 68410720 is about 8271.0773179798. The cubic root of 68410720 is about 408.9856344450.

The spelling of 68410720 in words is "sixty-eight million, four hundred ten thousand, seven hundred twenty".