2248642809 has 64 divisors (see below), whose sum is σ = 3860398080. Its totient is φ = 1267151040.

The previous prime is 2248642801. The next prime is 2248642843. The reversal of 2248642809 is 9082468422.

It is not a de Polignac number, because 2248642809 - 2³ = 2248642801 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2248642801) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6028347 + ... + 6028719.

It is an arithmetic number, because the mean of its divisors is an integer number (60318720).

Almost surely, 2^2248642809 is an apocalyptic number.

It is an amenable number.

2248642809 is a deficient number, since it is larger than the sum of its proper divisors (1611755271).

2248642809 is a wasteful number, since it uses less digits than its factorization.

2248642809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747 (or 741 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The square root of 2248642809 is about 47419.8566952706. The cubic root of 2248642809 is about 1310.1071739910.

The spelling of 2248642809 in words is "two billion, two hundred forty-eight million, six hundred forty-two thousand, eight hundred nine".