68260138 has 8 divisors (see below), whose sum is σ = 102426660. Its totient is φ = 34117920.

The previous prime is 68260111. The next prime is 68260139. The reversal of 68260138 is 83106286.

It can be written as a sum of positive squares in 2 ways, for example, as 57350329 + 10909809 = 7573^2 + 3303^2 .

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

It is not an unprimeable number, because it can be changed into a prime (68260139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4948 + ... + 12688.

Almost surely, 2^68260138 is an apocalyptic number.

68260138 is a deficient number, since it is larger than the sum of its proper divisors (34166522).

68260138 is a wasteful number, since it uses less digits than its factorization.

68260138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12152.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 68260138 is about 8261.9693778179. The cubic root of 68260138 is about 408.6853349371.

The spelling of 68260138 in words is "sixty-eight million, two hundred sixty thousand, one hundred thirty-eight".