68320384 has 32 divisors (see below), whose sum is σ = 148483440. Its totient is φ = 31054080.

The previous prime is 68320381. The next prime is 68320387. The reversal of 68320384 is 48302386.

It is an interprime number because it is at equal distance from previous prime (68320381) and next prime (68320387).

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (68320381) 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, 22854 + ... + 25669.

Almost surely, 2^68320384 is an apocalyptic number.

68320384 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

68320384 is an abundant number, since it is smaller than the sum of its proper divisors (80163056).

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

68320384 is a wasteful number, since it uses less digits than its factorization.

68320384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48548 (or 48536 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 68320384 is about 8265.6145567042. The cubic root of 68320384 is about 408.8055340134.

The spelling of 68320384 in words is "sixty-eight million, three hundred twenty thousand, three hundred eighty-four".