2213927028 has 36 divisors (see below), whose sum is σ = 5617144260. Its totient is φ = 735229056.

The previous prime is 2213926999. The next prime is 2213927039. The reversal of 2213927028 is 8207293122.

It can be written as a sum of positive squares in 2 ways, for example, as 392515344 + 1821411684 = 19812^2 + 42678^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2213926983 and 2213927001.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 104625 + ... + 123992.

It is an arithmetic number, because the mean of its divisors is an integer number (156031785).

Almost surely, 2^2213927028 is an apocalyptic number.

It is an amenable number.

2213927028 is an abundant number, since it is smaller than the sum of its proper divisors (3403217232).

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

2213927028 is a wasteful number, since it uses less digits than its factorization.

2213927028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228896 (or 228891 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 2213927028 is about 47052.3859968865. The cubic root of 2213927028 is about 1303.3301264449.

The spelling of 2213927028 in words is "two billion, two hundred thirteen million, nine hundred twenty-seven thousand, twenty-eight".