2313440240 has 40 divisors (see below), whose sum is σ = 5695148880. Its totient is φ = 870941696.

The previous prime is 2313440237. The next prime is 2313440267. The reversal of 2313440240 is 420443132.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×2313440240³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 849170 + ... + 851889.

It is an arithmetic number, because the mean of its divisors is an integer number (142378722).

Almost surely, 2^2313440240 is an apocalyptic number.

2313440240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2313440240 is an abundant number, since it is smaller than the sum of its proper divisors (3381708640).

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

2313440240 is a wasteful number, since it uses less digits than its factorization.

2313440240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701089 (or 1701083 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 2313440240 is about 48098.2353106639. The cubic root of 2313440240 is about 1322.5723179472.

Adding to 2313440240 its reverse (420443132), we get a palindrome (2733883372).

The spelling of 2313440240 in words is "two billion, three hundred thirteen million, four hundred forty thousand, two hundred forty".