68434256 has 40 divisors (see below), whose sum is σ = 147740544. Its totient is φ = 30440960.

The previous prime is 68434243. The next prime is 68434279. The reversal of 68434256 is 65243486.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4136 + ... + 12408.

Almost surely, 2^68434256 is an apocalyptic number.

It is a pronic number, being equal to 8272×8273.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68434256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73870272).

68434256 is an abundant number, since it is smaller than the sum of its proper divisors (79306288).

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

68434256 is a wasteful number, since it uses less digits than its factorization.

68434256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8339 (or 8333 counting only the distinct ones).

The product of its digits is 138240, while the sum is 38.

The square root of 68434256 is about 8272.4999848897. The cubic root of 68434256 is about 409.0325314918.

The spelling of 68434256 in words is "sixty-eight million, four hundred thirty-four thousand, two hundred fifty-six".