2668444242 has 16 divisors (see below), whose sum is σ = 5416544352. Its totient is φ = 876205440.

The previous prime is 2668444231. The next prime is 2668444243. The reversal of 2668444242 is 2424448662.

2668444242 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2668444194 and 2668444203.

It is not an unprimeable number, because it can be changed into a prime (2668444243) 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, 3318559 + ... + 3319362.

It is an arithmetic number, because the mean of its divisors is an integer number (338534022).

Almost surely, 2^2668444242 is an apocalyptic number.

2668444242 is an abundant number, since it is smaller than the sum of its proper divisors (2748100110).

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

2668444242 is a wasteful number, since it uses less digits than its factorization.

2668444242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6637993.

The product of its digits is 589824, while the sum is 42.

The square root of 2668444242 is about 51656.9863813212. The cubic root of 2668444242 is about 1387.0306057367.

The spelling of 2668444242 in words is "two billion, six hundred sixty-eight million, four hundred forty-four thousand, two hundred forty-two".