68458278 has 32 divisors (see below), whose sum is σ = 157038336. Its totient is φ = 19489248.

The previous prime is 68458277. The next prime is 68458289. The reversal of 68458278 is 87285486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68458277) 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 15 ways as a sum of consecutive naturals, for example, 9525 + ... + 15087.

It is an arithmetic number, because the mean of its divisors is an integer number (4907448).

Almost surely, 2^68458278 is an apocalyptic number.

68458278 is an abundant number, since it is smaller than the sum of its proper divisors (88580058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68458278 is a wasteful number, since it uses less digits than its factorization.

68458278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5868.

The product of its digits is 860160, while the sum is 48.

The square root of 68458278 is about 8273.9517765092. The cubic root of 68458278 is about 409.0803858393.

The spelling of 68458278 in words is "sixty-eight million, four hundred fifty-eight thousand, two hundred seventy-eight".