9821849072 has 40 divisors (see below), whose sum is σ = 21972614496. Its totient is φ = 4165963776.

The previous prime is 9821849053. The next prime is 9821849119. The reversal of 9821849072 is 2709481289.

It is a super-2 number, since 2×9821849072² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9821849072.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 441173 + ... + 462900.

Almost surely, 2^9821849072 is an apocalyptic number.

It is an amenable number.

9821849072 is an abundant number, since it is smaller than the sum of its proper divisors (12150765424).

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

9821849072 is a wasteful number, since it uses less digits than its factorization.

9821849072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904185 (or 904179 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 50.

The square root of 9821849072 is about 99105.2424042240. The cubic root of 9821849072 is about 2141.5641367144.

The spelling of 9821849072 in words is "nine billion, eight hundred twenty-one million, eight hundred forty-nine thousand, seventy-two".