2540240313 has 32 divisors (see below), whose sum is σ = 3841178880. Its totient is φ = 1481483520.

The previous prime is 2540240303. The next prime is 2540240323. The reversal of 2540240313 is 3130420452.

It is an interprime number because it is at equal distance from previous prime (2540240303) and next prime (2540240323).

It is not a de Polignac number, because 2540240313 - 2²⁰ = 2539191737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2540240303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84783 + ... + 110763.

It is an arithmetic number, because the mean of its divisors is an integer number (120036840).

Almost surely, 2^2540240313 is an apocalyptic number.

2540240313 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2540240313 is a deficient number, since it is larger than the sum of its proper divisors (1300938567).

2540240313 is a wasteful number, since it uses less digits than its factorization.

2540240313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26129.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 2540240313 is about 50400.7967496547. The cubic root of 2540240313 is about 1364.4520179617.

Adding to 2540240313 its reverse (3130420452), we get a palindrome (5670660765).

The spelling of 2540240313 in words is "two billion, five hundred forty million, two hundred forty thousand, three hundred thirteen".