2086688444 has 12 divisors (see below), whose sum is σ = 3689351904. Its totient is φ = 1032587904.

The previous prime is 2086688441. The next prime is 2086688449. The reversal of 2086688444 is 4448866802.

It is a super-2 number, since 2×2086688444² = 8708537324646282272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2086688392 and 2086688401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2086688441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2688644 + ... + 2689419.

It is an arithmetic number, because the mean of its divisors is an integer number (307445992).

Almost surely, 2^2086688444 is an apocalyptic number.

It is an amenable number.

2086688444 is a deficient number, since it is larger than the sum of its proper divisors (1602663460).

2086688444 is a wasteful number, since it uses less digits than its factorization.

2086688444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5378164 (or 5378162 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 50.

The square root of 2086688444 is about 45680.2850691630. The cubic root of 2086688444 is about 1277.8676337219.

The spelling of 2086688444 in words is "two billion, eighty-six million, six hundred eighty-eight thousand, four hundred forty-four".