68419140 has 24 divisors (see below), whose sum is σ = 191573760. Its totient is φ = 18245088.

The previous prime is 68419129. The next prime is 68419163. The reversal of 68419140 is 4191486.

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, 570100 + ... + 570219.

It is an arithmetic number, because the mean of its divisors is an integer number (7982240).

Almost surely, 2^68419140 is an apocalyptic number.

68419140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68419140 is an abundant number, since it is smaller than the sum of its proper divisors (123154620).

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

68419140 is a wasteful number, since it uses less digits than its factorization.

68419140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140331 (or 1140329 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 68419140 is about 8271.5863049357. The cubic root of 68419140 is about 409.0024130911.

The spelling of 68419140 in words is "sixty-eight million, four hundred nineteen thousand, one hundred forty".