2266642447 has 4 divisors (see below), whose sum is σ = 2269445040. Its totient is φ = 2263839856.

The previous prime is 2266642429. The next prime is 2266642451. The reversal of 2266642447 is 7442466622.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2266642447 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 (2266622447) 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, 1400083 + ... + 1401700.

It is an arithmetic number, because the mean of its divisors is an integer number (567361260).

Almost surely, 2^2266642447 is an apocalyptic number.

2266642447 is a deficient number, since it is larger than the sum of its proper divisors (2802593).

2266642447 is an equidigital number, since it uses as much as digits as its factorization.

2266642447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2802592.

The product of its digits is 774144, while the sum is 43.

The square root of 2266642447 is about 47609.2684988963. The cubic root of 2266642447 is about 1313.5935454941.

The spelling of 2266642447 in words is "two billion, two hundred sixty-six million, six hundred forty-two thousand, four hundred forty-seven".