2238866685 has 24 divisors (see below), whose sum is σ = 4233494304. Its totient is φ = 1085510880.

The previous prime is 2238866683. The next prime is 2238866689. The reversal of 2238866685 is 5866688322.

It is not a de Polignac number, because 2238866685 - 2¹ = 2238866683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2238866683) 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 23 ways as a sum of consecutive naturals, for example, 2260987 + ... + 2261976.

It is an arithmetic number, because the mean of its divisors is an integer number (176395596).

Almost surely, 2^2238866685 is an apocalyptic number.

It is an amenable number.

2238866685 is a deficient number, since it is larger than the sum of its proper divisors (1994627619).

2238866685 is a wasteful number, since it uses less digits than its factorization.

2238866685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4522985 (or 4522982 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 54.

The square root of 2238866685 is about 47316.6639250909. The cubic root of 2238866685 is about 1308.2058232484.

The spelling of 2238866685 in words is "two billion, two hundred thirty-eight million, eight hundred sixty-six thousand, six hundred eighty-five".