2640015132 has 12 divisors (see below), whose sum is σ = 6160035336. Its totient is φ = 880005040.

The previous prime is 2640015109. The next prime is 2640015163. The reversal of 2640015132 is 2315100462.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110000619 + ... + 110000642.

It is an arithmetic number, because the mean of its divisors is an integer number (513336278).

Almost surely, 2^2640015132 is an apocalyptic number.

It is an amenable number.

2640015132 is an abundant number, since it is smaller than the sum of its proper divisors (3520020204).

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

2640015132 is a wasteful number, since it uses less digits than its factorization.

2640015132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220001268 (or 220001266 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2640015132 is about 51381.0775675248. The cubic root of 2640015132 is about 1382.0872866165.

Adding to 2640015132 its reverse (2315100462), we get a palindrome (4955115594).

The spelling of 2640015132 in words is "two billion, six hundred forty million, fifteen thousand, one hundred thirty-two".