68388130 has 16 divisors (see below), whose sum is σ = 123217920. Its totient is φ = 27328752.

The previous prime is 68388121. The next prime is 68388181. The reversal of 68388130 is 3188386.

It is a self number, because there is not a number n which added to its sum of digits gives 68388130.

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, 10117 + ... + 15463.

It is an arithmetic number, because the mean of its divisors is an integer number (7701120).

Almost surely, 2^68388130 is an apocalyptic number.

68388130 is a deficient number, since it is larger than the sum of its proper divisors (54829790).

68388130 is a wasteful number, since it uses less digits than its factorization.

68388130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6633.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 68388130 is about 8269.7116031939. The cubic root of 68388130 is about 408.9406122486.

The spelling of 68388130 in words is "sixty-eight million, three hundred eighty-eight thousand, one hundred thirty".