2478213305 has 4 divisors (see below), whose sum is σ = 2973855972. Its totient is φ = 1982570640.

The previous prime is 2478213289. The next prime is 2478213371. The reversal of 2478213305 is 5033128742.

2478213305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1199721769 + 1278491536 = 34637^2 + 35756^2 .

It is not a de Polignac number, because 2478213305 - 2⁴ = 2478213289 is a prime.

It is a super-2 number, since 2×2478213305² = 12283082370158046050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247821326 + ... + 247821335.

It is an arithmetic number, because the mean of its divisors is an integer number (743463993).

Almost surely, 2^2478213305 is an apocalyptic number.

It is an amenable number.

2478213305 is a deficient number, since it is larger than the sum of its proper divisors (495642667).

2478213305 is an equidigital number, since it uses as much as digits as its factorization.

2478213305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495642666.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 2478213305 is about 49781.6563103318. The cubic root of 2478213305 is about 1353.2547539382.

The spelling of 2478213305 in words is "two billion, four hundred seventy-eight million, two hundred thirteen thousand, three hundred five".