8201706444 has 36 divisors (see below), whose sum is σ = 21071967280. Its totient is φ = 2689083360.

The previous prime is 8201706433. The next prime is 8201706473. The reversal of 8201706444 is 4446071028.

8201706444 is a `hidden beast` number, since 8 + 2 + 0 + 1 + 7 + 0 + 644 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×8201706444² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 8201706399 and 8201706408.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1865224 + ... + 1869615.

Almost surely, 2^8201706444 is an apocalyptic number.

It is an amenable number.

8201706444 is an abundant number, since it is smaller than the sum of its proper divisors (12870260836).

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

8201706444 is a wasteful number, since it uses less digits than its factorization.

8201706444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3734910 (or 3734905 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 8201706444 is about 90563.2731519792. The cubic root of 8201706444 is about 2016.6695474251.

The spelling of 8201706444 in words is "eight billion, two hundred one million, seven hundred six thousand, four hundred forty-four".