9801838044 has 36 divisors (see below), whose sum is σ = 25576125120. Its totient is φ = 3161882880.

The previous prime is 9801838043. The next prime is 9801838049. The reversal of 9801838044 is 4408381089.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9801838043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4390389 + ... + 4392620.

It is an arithmetic number, because the mean of its divisors is an integer number (710447920).

Almost surely, 2^9801838044 is an apocalyptic number.

It is an amenable number.

9801838044 is an abundant number, since it is smaller than the sum of its proper divisors (15774287076).

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

9801838044 is a wasteful number, since it uses less digits than its factorization.

9801838044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8783050 (or 8783045 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 9801838044 is about 99004.2324549814. The cubic root of 9801838044 is about 2140.1087407987.

The spelling of 9801838044 in words is "nine billion, eight hundred one million, eight hundred thirty-eight thousand, forty-four".