68434870 has 24 divisors (see below), whose sum is σ = 143295264. Its totient is φ = 23463216.

The previous prime is 68434853. The next prime is 68434871. The reversal of 68434870 is 7843486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68434871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69342 + ... + 70321.

It is an arithmetic number, because the mean of its divisors is an integer number (5970636).

Almost surely, 2^68434870 is an apocalyptic number.

68434870 is an abundant number, since it is smaller than the sum of its proper divisors (74860394).

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

68434870 is a wasteful number, since it uses less digits than its factorization.

68434870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139684 (or 139677 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 68434870 is about 8272.5370957162. The cubic root of 68434870 is about 409.0337547837.

The spelling of 68434870 in words is "sixty-eight million, four hundred thirty-four thousand, eight hundred seventy".