68248768 has 56 divisors (see below), whose sum is σ = 157988000. Its totient is φ = 29240064.

The previous prime is 68248753. The next prime is 68248769. The reversal of 68248768 is 86784286.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (68248769) 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, 20398 + ... + 23506.

Almost surely, 2^68248768 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 68248768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78994000).

68248768 is an abundant number, since it is smaller than the sum of its proper divisors (89739232).

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

68248768 is an equidigital number, since it uses as much as digits as its factorization.

68248768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3142 (or 3118 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 49.

The square root of 68248768 is about 8261.2812565606. The cubic root of 68248768 is about 408.6626422870.

The spelling of 68248768 in words is "sixty-eight million, two hundred forty-eight thousand, seven hundred sixty-eight".