2312724240 has 60 divisors (see below), whose sum is σ = 7766901324. Its totient is φ = 616726272.

The previous prime is 2312724203. The next prime is 2312724247. The reversal of 2312724240 is 424272132.

2312724240 is a `hidden beast` number, since 231 + 2 + 7 + 2 + 424 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 520387344 + 1792336896 = 22812^2 + 42336^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2312724247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1605339 + ... + 1606778.

Almost surely, 2^2312724240 is an apocalyptic number.

2312724240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2312724240 is an abundant number, since it is smaller than the sum of its proper divisors (5454177084).

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

2312724240 is a wasteful number, since it uses less digits than its factorization.

2312724240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3212136 (or 3212127 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 2312724240 is about 48090.7916341580. The cubic root of 2312724240 is about 1322.4358603499.

Adding to 2312724240 its reverse (424272132), we get a palindrome (2736996372).

The spelling of 2312724240 in words is "two billion, three hundred twelve million, seven hundred twenty-four thousand, two hundred forty".