68345288 has 16 divisors (see below), whose sum is σ = 139797360. Its totient is φ = 31066000.

The previous prime is 68345281. The next prime is 68345311. The reversal of 68345288 is 88254386.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (68345281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388238 + ... + 388413.

It is an arithmetic number, because the mean of its divisors is an integer number (8737335).

Almost surely, 2^68345288 is an apocalyptic number.

It is an amenable number.

68345288 is an abundant number, since it is smaller than the sum of its proper divisors (71452072).

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

68345288 is a wasteful number, since it uses less digits than its factorization.

68345288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776668 (or 776664 counting only the distinct ones).

The product of its digits is 368640, while the sum is 44.

The square root of 68345288 is about 8267.1209014989. The cubic root of 68345288 is about 408.8552002849.

The spelling of 68345288 in words is "sixty-eight million, three hundred forty-five thousand, two hundred eighty-eight".