2173935240 has 256 divisors, whose sum is σ = 7460640000. Its totient is φ = 562857984.

The previous prime is 2173935223. The next prime is 2173935287. The reversal of 2173935240 is 425393712.

2173935240 is a `hidden beast` number, since 21 + 7 + 393 + 5 + 240 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 2173935195 and 2173935204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6945324 + ... + 6945636.

It is an arithmetic number, because the mean of its divisors is an integer number (29143125).

Almost surely, 2^2173935240 is an apocalyptic number.

2173935240 is a gapful number since it is divisible by the number (20) 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 2173935240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3730320000).

2173935240 is an abundant number, since it is smaller than the sum of its proper divisors (5286704760).

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

2173935240 is a wasteful number, since it uses less digits than its factorization.

2173935240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501 (or 491 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 2173935240 is about 46625.4784425854. The cubic root of 2173935240 is about 1295.4347243303.

The spelling of 2173935240 in words is "two billion, one hundred seventy-three million, nine hundred thirty-five thousand, two hundred forty".