68339045 has 6 divisors (see below), whose sum is σ = 82029042. Its totient is φ = 54656448.

The previous prime is 68339021. The next prime is 68339053. The reversal of 68339045 is 54093386.

It can be written as a sum of positive squares in 3 ways, for example, as 1737124 + 66601921 = 1318^2 + 8161^2 .

It is not a de Polignac number, because 68339045 - 2⁶ = 68338981 is a prime.

It is a Duffinian number.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 16637 + ... + 20333.

It is an arithmetic number, because the mean of its divisors is an integer number (13671507).

Almost surely, 2^68339045 is an apocalyptic number.

It is an amenable number.

68339045 is a deficient number, since it is larger than the sum of its proper divisors (13689997).

68339045 is an frugal number, since it uses more digits than its factorization.

68339045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7399 (or 3702 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 68339045 is about 8266.7433128167. The cubic root of 68339045 is about 408.8427509471.

The spelling of 68339045 in words is "sixty-eight million, three hundred thirty-nine thousand, forty-five".