68319944 has 32 divisors (see below), whose sum is σ = 159710400. Its totient is φ = 26617920.

The previous prime is 68319943. The next prime is 68319961. The reversal of 68319944 is 44991386.

It is a super-2 number, since 2×68319944² = 9335229496326272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 68319895 and 68319904.

It is not an unprimeable number, because it can be changed into a prime (68319943) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 54839 + ... + 56070.

It is an arithmetic number, because the mean of its divisors is an integer number (4990950).

Almost surely, 2^68319944 is an apocalyptic number.

It is an amenable number.

68319944 is an abundant number, since it is smaller than the sum of its proper divisors (91390456).

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

68319944 is a wasteful number, since it uses less digits than its factorization.

68319944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110933 (or 110929 counting only the distinct ones).

The product of its digits is 186624, while the sum is 44.

The square root of 68319944 is about 8265.5879403706. The cubic root of 68319944 is about 408.8046564089.

The spelling of 68319944 in words is "sixty-eight million, three hundred nineteen thousand, nine hundred forty-four".