68160240 has 120 divisors (see below), whose sum is σ = 230909328. Its totient is φ = 18017280.

The previous prime is 68160223. The next prime is 68160271. The reversal of 68160240 is 4206186.

68160240 = 9³ + 10³ + ... + 128³.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98295 + ... + 98985.

Almost surely, 2^68160240 is an apocalyptic number.

68160240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68160240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115454664).

68160240 is an abundant number, since it is smaller than the sum of its proper divisors (162749088).

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

68160240 is a wasteful number, since it uses less digits than its factorization.

68160240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847 (or 838 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 68160240 is about 8255.9215112548. The cubic root of 68160240 is about 408.4858686915.

The spelling of 68160240 in words is "sixty-eight million, one hundred sixty thousand, two hundred forty".