2680420804 has 24 divisors (see below), whose sum is σ = 4968249048. Its totient is φ = 1260971520.

The previous prime is 2680420777. The next prime is 2680420807. The reversal of 2680420804 is 4080240862.

It can be written as a sum of positive squares in 4 ways, for example, as 873320704 + 1807100100 = 29552^2 + 42510^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 2680420804.

It is not an unprimeable number, because it can be changed into a prime (2680420807) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 391894 + ... + 398674.

It is an arithmetic number, because the mean of its divisors is an integer number (207010377).

Almost surely, 2^2680420804 is an apocalyptic number.

It is an amenable number.

2680420804 is a deficient number, since it is larger than the sum of its proper divisors (2287828244).

2680420804 is a wasteful number, since it uses less digits than its factorization.

2680420804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12615 (or 12613 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 2680420804 is about 51772.7805318586. The cubic root of 2680420804 is about 1389.1026079688.

The spelling of 2680420804 in words is "two billion, six hundred eighty million, four hundred twenty thousand, eight hundred four".