9172840120 has 16 divisors (see below), whose sum is σ = 20638890360. Its totient is φ = 3669136032.

The previous prime is 9172840111. The next prime is 9172840129. The reversal of 9172840120 is 210482719.

It is an interprime number because it is at equal distance from previous prime (9172840111) and next prime (9172840129).

It is a super-2 number, since 2×9172840120² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9172840129) 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, 114660462 + ... + 114660541.

Almost surely, 2^9172840120 is an apocalyptic number.

It is an amenable number.

9172840120 is an abundant number, since it is smaller than the sum of its proper divisors (11466050240).

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

9172840120 is a wasteful number, since it uses less digits than its factorization.

9172840120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229321014 (or 229321010 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 9172840120 is about 95774.9451579065. The cubic root of 9172840120 is about 2093.3151085228.

The spelling of 9172840120 in words is "nine billion, one hundred seventy-two million, eight hundred forty thousand, one hundred twenty".