2266644893 has 4 divisors (see below), whose sum is σ = 2303803068. Its totient is φ = 2229486720.

The previous prime is 2266644869. The next prime is 2266644971. The reversal of 2266644893 is 3984466622.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3984466622 = 2 ⋅1992233311.

It can be written as a sum of positive squares in 2 ways, for example, as 477947044 + 1788697849 = 21862^2 + 42293^2 .

It is a cyclic number.

It is not a de Polignac number, because 2266644893 - 2²⁴ = 2249867677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2266644293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18578996 + ... + 18579117.

It is an arithmetic number, because the mean of its divisors is an integer number (575950767).

Almost surely, 2^2266644893 is an apocalyptic number.

It is an amenable number.

2266644893 is a deficient number, since it is larger than the sum of its proper divisors (37158175).

2266644893 is an equidigital number, since it uses as much as digits as its factorization.

2266644893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37158174.

The product of its digits is 2985984, while the sum is 50.

The square root of 2266644893 is about 47609.2941871648. The cubic root of 2266644893 is about 1313.5940180063.

The spelling of 2266644893 in words is "two billion, two hundred sixty-six million, six hundred forty-four thousand, eight hundred ninety-three".