68444670 has 96 divisors (see below), whose sum is σ = 193396896. Its totient is φ = 15456000.

The previous prime is 68444647. The next prime is 68444671. The reversal of 68444670 is 7644486.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68444671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 148240 + ... + 148700.

It is an arithmetic number, because the mean of its divisors is an integer number (2014551).

Almost surely, 2^68444670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68444670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96698448).

68444670 is an abundant number, since it is smaller than the sum of its proper divisors (124952226).

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

68444670 is a wasteful number, since it uses less digits than its factorization.

68444670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586 (or 579 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 39.

The square root of 68444670 is about 8273.1293958211. The cubic root of 68444670 is about 409.0532786486.

It can be divided in two parts, 684 and 44670, that added together give a palindrome (45354).

The spelling of 68444670 in words is "sixty-eight million, four hundred forty-four thousand, six hundred seventy".