2213857646 has 32 divisors (see below), whose sum is σ = 4458682368. Its totient is φ = 796191840.

The previous prime is 2213857643. The next prime is 2213857669. The reversal of 2213857646 is 6467583122.

It is a super-2 number, since 2×2213857646² = 9802331353505322632, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2213857597 and 2213857606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213857643) 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 15 ways as a sum of consecutive naturals, for example, 550910 + ... + 554913.

It is an arithmetic number, because the mean of its divisors is an integer number (139333824).

Almost surely, 2^2213857646 is an apocalyptic number.

2213857646 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2213857646 is an abundant number, since it is smaller than the sum of its proper divisors (2244824722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2213857646 is a wasteful number, since it uses less digits than its factorization.

2213857646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105856.

The product of its digits is 483840, while the sum is 44.

The square root of 2213857646 is about 47051.6487065012. The cubic root of 2213857646 is about 1303.3165113325.

The spelling of 2213857646 in words is "two billion, two hundred thirteen million, eight hundred fifty-seven thousand, six hundred forty-six".