68042468 has 24 divisors (see below), whose sum is σ = 132658680. Its totient is φ = 30320640.

The previous prime is 68042459. The next prime is 68042473. The reversal of 68042468 is 86424086.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 506944 + 67535524 = 712^2 + 8218^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 21053 + ... + 24068.

It is an arithmetic number, because the mean of its divisors is an integer number (5527445).

Almost surely, 2^68042468 is an apocalyptic number.

It is an amenable number.

68042468 is a deficient number, since it is larger than the sum of its proper divisors (64616212).

68042468 is a wasteful number, since it uses less digits than its factorization.

68042468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45167 (or 45165 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 38.

The square root of 68042468 is about 8248.7858500509. The cubic root of 68042468 is about 408.2504629643.

The spelling of 68042468 in words is "sixty-eight million, forty-two thousand, four hundred sixty-eight".