2238856645 has 8 divisors (see below), whose sum is σ = 2699362080. Its totient is φ = 1782595920.

The previous prime is 2238856601. The next prime is 2238856649. The reversal of 2238856645 is 5466588322.

2238856645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2238856645 - 2¹⁹ = 2238332357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2238856649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1060015 + ... + 1062124.

It is an arithmetic number, because the mean of its divisors is an integer number (337420260).

Almost surely, 2^2238856645 is an apocalyptic number.

It is an amenable number.

2238856645 is a deficient number, since it is larger than the sum of its proper divisors (460505435).

2238856645 is a wasteful number, since it uses less digits than its factorization.

2238856645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122355.

The product of its digits is 2764800, while the sum is 49.

The square root of 2238856645 is about 47316.5578312709. The cubic root of 2238856645 is about 1308.2038677343.

The spelling of 2238856645 in words is "two billion, two hundred thirty-eight million, eight hundred fifty-six thousand, six hundred forty-five".