68017390 has 48 divisors (see below), whose sum is σ = 143672832. Its totient is φ = 23115456.

The previous prime is 68017381. The next prime is 68017399. The reversal of 68017390 is 9371086.

It is an interprime number because it is at equal distance from previous prime (68017381) and next prime (68017399).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68017399) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61684 + ... + 62776.

It is an arithmetic number, because the mean of its divisors is an integer number (2993184).

Almost surely, 2^68017390 is an apocalyptic number.

68017390 is an abundant number, since it is smaller than the sum of its proper divisors (75655442).

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

68017390 is a wasteful number, since it uses less digits than its factorization.

68017390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241 (or 1234 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 68017390 is about 8247.2656074605. The cubic root of 68017390 is about 408.2003013351.

The spelling of 68017390 in words is "sixty-eight million, seventeen thousand, three hundred ninety".