68320844 has 12 divisors (see below), whose sum is σ = 120745968. Its totient is φ = 33822000.

The previous prime is 68320843. The next prime is 68320853. The reversal of 68320844 is 44802386.

It is not an unprimeable number, because it can be changed into a prime (68320843) 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, 84152 + ... + 84959.

It is an arithmetic number, because the mean of its divisors is an integer number (10062164).

Almost surely, 2^68320844 is an apocalyptic number.

It is an amenable number.

68320844 is a deficient number, since it is larger than the sum of its proper divisors (52425124).

68320844 is a wasteful number, since it uses less digits than its factorization.

68320844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169216 (or 169214 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 68320844 is about 8265.6423827795. The cubic root of 68320844 is about 408.8064515049.

The spelling of 68320844 in words is "sixty-eight million, three hundred twenty thousand, eight hundred forty-four".