2402640505 has 8 divisors (see below), whose sum is σ = 2887012224. Its totient is φ = 1919550000.

The previous prime is 2402640503. The next prime is 2402640511. The reversal of 2402640505 is 5050462042.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2402640505 - 2¹ = 2402640503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2402640503) 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, 316171 + ... + 323680.

It is an arithmetic number, because the mean of its divisors is an integer number (360876528).

Almost surely, 2^2402640505 is an apocalyptic number.

It is an amenable number.

2402640505 is a deficient number, since it is larger than the sum of its proper divisors (484371719).

2402640505 is an equidigital number, since it uses as much as digits as its factorization.

2402640505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640607.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 2402640505 is about 49016.7369885022. The cubic root of 2402640505 is about 1339.3567316057.

The spelling of 2402640505 in words is "two billion, four hundred two million, six hundred forty thousand, five hundred five".