9809120232 has 24 divisors (see below), whose sum is σ = 26566367490. Its totient is φ = 3269706720.

The previous prime is 9809120221. The next prime is 9809120351. The reversal of 9809120232 is 2320219089.

It can be written as a sum of positive squares in only one way, i.e., 9102304836 + 706815396 = 95406^2 + 26586^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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

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, 68118819 + ... + 68118962.

Almost surely, 2^9809120232 is an apocalyptic number.

It is an amenable number.

9809120232 is an abundant number, since it is smaller than the sum of its proper divisors (16757247258).

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

9809120232 is a wasteful number, since it uses less digits than its factorization.

9809120232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136237793 (or 136237786 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 9809120232 is about 99041.0027816762. The cubic root of 9809120232 is about 2140.6386011580.

The spelling of 9809120232 in words is "nine billion, eight hundred nine million, one hundred twenty thousand, two hundred thirty-two".