2540279536 has 20 divisors (see below), whose sum is σ = 5211309312. Its totient is φ = 1195425536.

The previous prime is 2540279503. The next prime is 2540279543. The reversal of 2540279536 is 6359720452.

It is a junction number, because it is equal to n+sod(n) for n = 2540279492 and 2540279501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4669360 + ... + 4669903.

Almost surely, 2^2540279536 is an apocalyptic number.

It is an amenable number.

2540279536 is an abundant number, since it is smaller than the sum of its proper divisors (2671029776).

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

2540279536 is a wasteful number, since it uses less digits than its factorization.

2540279536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9339288 (or 9339282 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 43.

The square root of 2540279536 is about 50401.1858590649. The cubic root of 2540279536 is about 1364.4590406078.

Adding to 2540279536 its reverse (6359720452), we get a palindrome (8899999988).

The spelling of 2540279536 in words is "two billion, five hundred forty million, two hundred seventy-nine thousand, five hundred thirty-six".