2238806745 has 48 divisors (see below), whose sum is σ = 4438437120. Its totient is φ = 1022654592.

The previous prime is 2238806741. The next prime is 2238806747. The reversal of 2238806745 is 5476088322.

It is not a de Polignac number, because 2238806745 - 2² = 2238806741 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2238806745.

It is not an unprimeable number, because it can be changed into a prime (2238806741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 627276 + ... + 630834.

It is an arithmetic number, because the mean of its divisors is an integer number (92467440).

Almost surely, 2^2238806745 is an apocalyptic number.

It is an amenable number.

2238806745 is a deficient number, since it is larger than the sum of its proper divisors (2199630375).

2238806745 is a wasteful number, since it uses less digits than its factorization.

2238806745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5574 (or 5571 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The square root of 2238806745 is about 47316.0305287753. The cubic root of 2238806745 is about 1308.1941485088.

The spelling of 2238806745 in words is "two billion, two hundred thirty-eight million, eight hundred six thousand, seven hundred forty-five".