68440910 has 8 divisors (see below), whose sum is σ = 123193656. Its totient is φ = 27376360.

The previous prime is 68440909. The next prime is 68440913. The reversal of 68440910 is 1904486.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68440913) 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 3 ways as a sum of consecutive naturals, for example, 3422036 + ... + 3422055.

It is an arithmetic number, because the mean of its divisors is an integer number (15399207).

Almost surely, 2^68440910 is an apocalyptic number.

68440910 is a deficient number, since it is larger than the sum of its proper divisors (54752746).

68440910 is a wasteful number, since it uses less digits than its factorization.

68440910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6844098.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 68440910 is about 8272.9021509988. The cubic root of 68440910 is about 409.0457880800.

The spelling of 68440910 in words is "sixty-eight million, four hundred forty thousand, nine hundred ten".