68104644 has 96 divisors (see below), whose sum is σ = 174182400. Its totient is φ = 20657280.

The previous prime is 68104577. The next prime is 68104651. The reversal of 68104644 is 44640186.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 636439 + ... + 636545.

It is an arithmetic number, because the mean of its divisors is an integer number (1814400).

Almost surely, 2^68104644 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 68104644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87091200).

68104644 is an abundant number, since it is smaller than the sum of its proper divisors (106077756).

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

68104644 is a wasteful number, since it uses less digits than its factorization.

68104644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 68104644 is about 8252.5537865560. The cubic root of 68104644 is about 408.3747757836.

The spelling of 68104644 in words is "sixty-eight million, one hundred four thousand, six hundred forty-four".