68942180 has 24 divisors (see below), whose sum is σ = 145047672. Its totient is φ = 27525632.

The previous prime is 68942177. The next prime is 68942183. The reversal of 68942180 is 8124986.

68942180 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (68942177) and next prime (68942183).

It can be written as a sum of positive squares in 4 ways, for example, as 14684224 + 54257956 = 3832^2 + 7366^2 .

68942180 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (68942183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8954 + ... + 14766.

It is an arithmetic number, because the mean of its divisors is an integer number (6043653).

Almost surely, 2^68942180 is an apocalyptic number.

It is an amenable number.

68942180 is an abundant number, since it is smaller than the sum of its proper divisors (76105492).

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

68942180 is a wasteful number, since it uses less digits than its factorization.

68942180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6415 (or 6413 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 68942180 is about 8303.1427784906. The cubic root of 68942180 is about 410.0419945088.

The spelling of 68942180 in words is "sixty-eight million, nine hundred forty-two thousand, one hundred eighty".