2444066642 has 12 divisors (see below), whose sum is σ = 3894439290. Its totient is φ = 1150148736.

The previous prime is 2444066623. The next prime is 2444066663. The reversal of 2444066642 is 2466604442.

It can be written as a sum of positive squares in 3 ways, for example, as 2380561681 + 63504961 = 48791^2 + 7969^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2444066596 and 2444066605.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2113667 + ... + 2114822.

Almost surely, 2^2444066642 is an apocalyptic number.

2444066642 is a deficient number, since it is larger than the sum of its proper divisors (1450372648).

2444066642 is a wasteful number, since it uses less digits than its factorization.

2444066642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4228525 (or 4228508 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 38.

The square root of 2444066642 is about 49437.5023843236. The cubic root of 2444066642 is about 1347.0106037366.

The spelling of 2444066642 in words is "two billion, four hundred forty-four million, sixty-six thousand, six hundred forty-two".