68444259 has 16 divisors (see below), whose sum is σ = 98784000. Its totient is φ = 41903136.

The previous prime is 68444231. The next prime is 68444269. The reversal of 68444259 is 95244486.

It is not a de Polignac number, because 68444259 - 2²⁰ = 67395683 is a prime.

It is a super-3 number, since 3×68444259³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68444259.

It is not an unprimeable number, because it can be changed into a prime (68444219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3352 + ... + 12170.

It is an arithmetic number, because the mean of its divisors is an integer number (6174000).

Almost surely, 2^68444259 is an apocalyptic number.

68444259 is a deficient number, since it is larger than the sum of its proper divisors (30339741).

68444259 is a wasteful number, since it uses less digits than its factorization.

68444259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9034.

The product of its digits is 276480, while the sum is 42.

The square root of 68444259 is about 8273.1045563319. The cubic root of 68444259 is about 409.0524598791.

The spelling of 68444259 in words is "sixty-eight million, four hundred forty-four thousand, two hundred fifty-nine".