2540000260 has 72 divisors (see below), whose sum is σ = 6569892504. Its totient is φ = 819624960.

The previous prime is 2540000189. The next prime is 2540000261. The reversal of 2540000260 is 620000452.

It can be written as a sum of positive squares in 4 ways, for example, as 1341317376 + 1198682884 = 36624^2 + 34622^2 .

It is not an unprimeable number, because it can be changed into a prime (2540000261) by changing a digit.

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, 59571 + ... + 92890.

It is an arithmetic number, because the mean of its divisors is an integer number (91248507).

Almost surely, 2^2540000260 is an apocalyptic number.

2540000260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2540000260 is an abundant number, since it is smaller than the sum of its proper divisors (4029892244).

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

2540000260 is a wasteful number, since it uses less digits than its factorization.

2540000260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152501 (or 152492 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 2540000260 is about 50398.4152528629. The cubic root of 2540000260 is about 1364.4090363172.

The spelling of 2540000260 in words is "two billion, five hundred forty million, two hundred sixty", and thus it is an aban number.