2263998305 has 4 divisors (see below), whose sum is σ = 2716797972. Its totient is φ = 1811198640.

The previous prime is 2263998277. The next prime is 2263998313. The reversal of 2263998305 is 5038993622.

It is a happy number.

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 364084561 + 1899913744 = 19081^2 + 43588^2 .

It is not a de Polignac number, because 2263998305 - 2²⁰ = 2262949729 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 2263998305.

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, 226399826 + ... + 226399835.

It is an arithmetic number, because the mean of its divisors is an integer number (679199493).

Almost surely, 2^2263998305 is an apocalyptic number.

It is an amenable number.

2263998305 is a deficient number, since it is larger than the sum of its proper divisors (452799667).

2263998305 is an equidigital number, since it uses as much as digits as its factorization.

2263998305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452799666.

The product of its (nonzero) digits is 699840, while the sum is 47.

The square root of 2263998305 is about 47581.4912019369. The cubic root of 2263998305 is about 1313.0825577784.

The spelling of 2263998305 in words is "two billion, two hundred sixty-three million, nine hundred ninety-eight thousand, three hundred five".