2642040520 has 32 divisors (see below), whose sum is σ = 6793819200. Its totient is φ = 905842368.

The previous prime is 2642040493. The next prime is 2642040523. The reversal of 2642040520 is 250402462.

It is not an unprimeable number, because it can be changed into a prime (2642040523) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4717650 + ... + 4718209.

It is an arithmetic number, because the mean of its divisors is an integer number (212306850).

Almost surely, 2^2642040520 is an apocalyptic number.

2642040520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2642040520 is an abundant number, since it is smaller than the sum of its proper divisors (4151778680).

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

2642040520 is a wasteful number, since it uses less digits than its factorization.

2642040520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9435877 (or 9435873 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 2642040520 is about 51400.7832625146. The cubic root of 2642040520 is about 1382.4406365427.

Adding to 2642040520 its reverse (250402462), we get a palindrome (2892442982).

The spelling of 2642040520 in words is "two billion, six hundred forty-two million, forty thousand, five hundred twenty".