2313244840 has 32 divisors (see below), whose sum is σ = 5211485280. Its totient is φ = 924109632.

The previous prime is 2313244789. The next prime is 2313244841. The reversal of 2313244840 is 484423132.

It is a happy number.

It is a super-2 number, since 2×2313244840² = 10702203379573251200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2313244841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5262 + ... + 68221.

It is an arithmetic number, because the mean of its divisors is an integer number (162858915).

Almost surely, 2^2313244840 is an apocalyptic number.

2313244840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2313244840 is an abundant number, since it is smaller than the sum of its proper divisors (2898240440).

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

2313244840 is a wasteful number, since it uses less digits than its factorization.

2313244840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74281 (or 74277 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

The square root of 2313244840 is about 48096.2040082167. The cubic root of 2313244840 is about 1322.5350807765.

Adding to 2313244840 its reverse (484423132), we get a palindrome (2797667972).

The spelling of 2313244840 in words is "two billion, three hundred thirteen million, two hundred forty-four thousand, eight hundred forty".