2224705865 has 4 divisors (see below), whose sum is σ = 2669647044. Its totient is φ = 1779764688.

The previous prime is 2224705817. The next prime is 2224705871. The reversal of 2224705865 is 5685074222.

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 854743696 + 1369962169 = 29236^2 + 37013^2 .

It is a cyclic number.

It is not a de Polignac number, because 2224705865 - 2¹⁸ = 2224443721 is a prime.

It is a Duffinian number.

It is a Curzon 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, 222470582 + ... + 222470591.

It is an arithmetic number, because the mean of its divisors is an integer number (667411761).

Almost surely, 2^2224705865 is an apocalyptic number.

It is an amenable number.

2224705865 is a deficient number, since it is larger than the sum of its proper divisors (444941179).

2224705865 is an equidigital number, since it uses as much as digits as its factorization.

2224705865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444941178.

The product of its (nonzero) digits is 268800, while the sum is 41.

The square root of 2224705865 is about 47166.7877324712. The cubic root of 2224705865 is about 1305.4418560232.

The spelling of 2224705865 in words is "two billion, two hundred twenty-four million, seven hundred five thousand, eight hundred sixty-five".