68441930 has 8 divisors (see below), whose sum is σ = 123195492. Its totient is φ = 27376768.

The previous prime is 68441929. The next prime is 68441969. The reversal of 68441930 is 3914486.

It can be written as a sum of positive squares in 2 ways, for example, as 65820769 + 2621161 = 8113^2 + 1619^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a plaindrome in base 13.

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 3 ways as a sum of consecutive naturals, for example, 3422087 + ... + 3422106.

Almost surely, 2^68441930 is an apocalyptic number.

68441930 is a deficient number, since it is larger than the sum of its proper divisors (54753562).

68441930 is a wasteful number, since it uses less digits than its factorization.

68441930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6844200.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 68441930 is about 8272.9637978176. The cubic root of 68441930 is about 409.0478201231.

The spelling of 68441930 in words is "sixty-eight million, four hundred forty-one thousand, nine hundred thirty".