68559040 has 56 divisors (see below), whose sum is σ = 178106832. Its totient is φ = 24929280.

The previous prime is 68559031. The next prime is 68559077. The reversal of 68559040 is 4095586.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6219 + ... + 13258.

Almost surely, 2^68559040 is an apocalyptic number.

It is an amenable number.

68559040 is an abundant number, since it is smaller than the sum of its proper divisors (109547792).

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

68559040 is a wasteful number, since it uses less digits than its factorization.

68559040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19505 (or 19495 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 68559040 is about 8280.0386472528. The cubic root of 68559040 is about 409.2809924575.

The spelling of 68559040 in words is "sixty-eight million, five hundred fifty-nine thousand, forty".