2306173240 has 96 divisors (see below), whose sum is σ = 6049008720. Its totient is φ = 788992512.

The previous prime is 2306173237. The next prime is 2306173271. The reversal of 2306173240 is 423716032.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 2306173199 and 2306173208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1208367 + ... + 1210273.

Almost surely, 2^2306173240 is an apocalyptic number.

2306173240 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 2306173240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3024504360).

2306173240 is an abundant number, since it is smaller than the sum of its proper divisors (3742835480).

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

2306173240 is a wasteful number, since it uses less digits than its factorization.

2306173240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2549 (or 2538 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 2306173240 is about 48022.6325808988. The cubic root of 2306173240 is about 1321.1860399136.

Adding to 2306173240 its reverse (423716032), we get a palindrome (2729889272).

The spelling of 2306173240 in words is "two billion, three hundred six million, one hundred seventy-three thousand, two hundred forty".