2420776745 has 4 divisors (see below), whose sum is σ = 2904932100. Its totient is φ = 1936621392.

The previous prime is 2420776741. The next prime is 2420776751. The reversal of 2420776745 is 5476770242.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 621405184 + 1799371561 = 24928^2 + 42419^2 .

It is a cyclic number.

It is not a de Polignac number, because 2420776745 - 2² = 2420776741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2420776696 and 2420776705.

It is not an unprimeable number, because it can be changed into a prime (2420776741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242077670 + ... + 242077679.

It is an arithmetic number, because the mean of its divisors is an integer number (726233025).

Almost surely, 2^2420776745 is an apocalyptic number.

It is an amenable number.

2420776745 is a deficient number, since it is larger than the sum of its proper divisors (484155355).

2420776745 is an equidigital number, since it uses as much as digits as its factorization.

2420776745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484155354.

The product of its (nonzero) digits is 658560, while the sum is 44.

The square root of 2420776745 is about 49201.3896653336. The cubic root of 2420776745 is about 1342.7183151740.

The spelling of 2420776745 in words is "two billion, four hundred twenty million, seven hundred seventy-six thousand, seven hundred forty-five".