68288744 has 16 divisors (see below), whose sum is σ = 130766400. Its totient is φ = 33417712.

The previous prime is 68288743. The next prime is 68288761. The reversal of 68288744 is 44788286.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is not an unprimeable number, because it can be changed into a prime (68288741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90434 + ... + 91185.

It is an arithmetic number, because the mean of its divisors is an integer number (8172900).

Almost surely, 2^68288744 is an apocalyptic number.

It is an amenable number.

68288744 is a deficient number, since it is larger than the sum of its proper divisors (62477656).

68288744 is a wasteful number, since it uses less digits than its factorization.

68288744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181672 (or 181668 counting only the distinct ones).

The product of its digits is 688128, while the sum is 47.

The square root of 68288744 is about 8263.7003817902. The cubic root of 68288744 is about 408.7424166655.

The spelling of 68288744 in words is "sixty-eight million, two hundred eighty-eight thousand, seven hundred forty-four".