2279463905 has 4 divisors (see below), whose sum is σ = 2735356692. Its totient is φ = 1823571120.

The previous prime is 2279463899. The next prime is 2279463929. The reversal of 2279463905 is 5093649722.

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 1073152081 + 1206311824 = 32759^2 + 34732^2 .

It is not a de Polignac number, because 2279463905 - 2⁴ = 2279463889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2279463905.

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, 227946386 + ... + 227946395.

It is an arithmetic number, because the mean of its divisors is an integer number (683839173).

Almost surely, 2^2279463905 is an apocalyptic number.

It is an amenable number.

2279463905 is a deficient number, since it is larger than the sum of its proper divisors (455892787).

2279463905 is an equidigital number, since it uses as much as digits as its factorization.

2279463905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455892786.

The product of its (nonzero) digits is 816480, while the sum is 47.

The square root of 2279463905 is about 47743.7315780826. The cubic root of 2279463905 is about 1316.0657083025.

The spelling of 2279463905 in words is "two billion, two hundred seventy-nine million, four hundred sixty-three thousand, nine hundred five".