9173913840 has 480 divisors, whose sum is σ = 38195888640. Its totient is φ = 1921480704.

The previous prime is 9173913839. The next prime is 9173913841. The reversal of 9173913840 is 483193719.

It is an interprime number because it is at equal distance from previous prime (9173913839) and next prime (9173913841).

It is a super-3 number, since 3×9173913840³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9173913841) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10679331 + ... + 10680189.

It is an arithmetic number, because the mean of its divisors is an integer number (79574768).

Almost surely, 2^9173913840 is an apocalyptic number.

9173913840 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9173913840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19097944320).

9173913840 is an abundant number, since it is smaller than the sum of its proper divisors (29021974800).

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

9173913840 is a wasteful number, since it uses less digits than its factorization.

9173913840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061 (or 1052 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 9173913840 is about 95780.5504264827. The cubic root of 9173913840 is about 2093.3967824855.

The spelling of 9173913840 in words is "nine billion, one hundred seventy-three million, nine hundred thirteen thousand, eight hundred forty".