68556380 has 12 divisors (see below), whose sum is σ = 143968440. Its totient is φ = 27422544.

The previous prime is 68556373. The next prime is 68556419. The reversal of 68556380 is 8365586.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1713890 + ... + 1713929.

It is an arithmetic number, because the mean of its divisors is an integer number (11997370).

Almost surely, 2^68556380 is an apocalyptic number.

It is an amenable number.

68556380 is an abundant number, since it is smaller than the sum of its proper divisors (75412060).

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

68556380 is a wasteful number, since it uses less digits than its factorization.

68556380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3427828 (or 3427826 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 68556380 is about 8279.8780184252. The cubic root of 68556380 is about 409.2756992022.

The spelling of 68556380 in words is "sixty-eight million, five hundred fifty-six thousand, three hundred eighty".