68434278 has 16 divisors (see below), whose sum is σ = 149311296. Its totient is φ = 20737640.

The previous prime is 68434243. The next prime is 68434279. The reversal of 68434278 is 87243486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68434279) 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 7 ways as a sum of consecutive naturals, for example, 518376 + ... + 518507.

It is an arithmetic number, because the mean of its divisors is an integer number (9331956).

Almost surely, 2^68434278 is an apocalyptic number.

68434278 is an abundant number, since it is smaller than the sum of its proper divisors (80877018).

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

68434278 is a wasteful number, since it uses less digits than its factorization.

68434278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036899.

The product of its digits is 258048, while the sum is 42.

The square root of 68434278 is about 8272.5013145965. The cubic root of 68434278 is about 409.0325753232.

The spelling of 68434278 in words is "sixty-eight million, four hundred thirty-four thousand, two hundred seventy-eight".