68130444 has 12 divisors (see below), whose sum is σ = 158971064. Its totient is φ = 22710144.

The previous prime is 68130421. The next prime is 68130451. The reversal of 68130444 is 44403186.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2838757 + ... + 2838780.

Almost surely, 2^68130444 is an apocalyptic number.

It is an amenable number.

68130444 is an abundant number, since it is smaller than the sum of its proper divisors (90840620).

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

68130444 is a wasteful number, since it uses less digits than its factorization.

68130444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5677544 (or 5677542 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 68130444 is about 8254.1167910322. The cubic root of 68130444 is about 408.4263373141.

It can be divided in two parts, 681 and 30444, that added together give a triangular number (31125 = T₂₄₉).

The spelling of 68130444 in words is "sixty-eight million, one hundred thirty thousand, four hundred forty-four".