2312379540 has 72 divisors (see below), whose sum is σ = 7019255880. Its totient is φ = 616191744.

The previous prime is 2312379539. The next prime is 2312379581. The reversal of 2312379540 is 459732132.

2312379540 is a `hidden beast` number, since 23 + 1 + 23 + 79 + 540 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 382358916 + 1930020624 = 19554^2 + 43932^2 .

It is a super-2 number, since 2×2312379540² = 10694198274021223200, which contains 22 as substring.

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 = 2312379495 and 2312379504.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 303862 + ... + 311378.

It is an arithmetic number, because the mean of its divisors is an integer number (97489665).

Almost surely, 2^2312379540 is an apocalyptic number.

2312379540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2312379540 is an abundant number, since it is smaller than the sum of its proper divisors (4706876340).

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

2312379540 is a wasteful number, since it uses less digits than its factorization.

2312379540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9241 (or 9236 counting only the distinct ones).

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

The square root of 2312379540 is about 48087.2076544272. The cubic root of 2312379540 is about 1322.3701562649.

The spelling of 2312379540 in words is "two billion, three hundred twelve million, three hundred seventy-nine thousand, five hundred forty".