2228207328 has 36 divisors (see below), whose sum is σ = 6336465408. Its totient is φ = 742735680.

The previous prime is 2228207299. The next prime is 2228207341. The reversal of 2228207328 is 8237028222.

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 = 2228207292 and 2228207301.

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 5 ways as a sum of consecutive naturals, for example, 3868128 + ... + 3868703.

It is an arithmetic number, because the mean of its divisors is an integer number (176012928).

Almost surely, 2^2228207328 is an apocalyptic number.

It is an amenable number.

2228207328 is an abundant number, since it is smaller than the sum of its proper divisors (4108258080).

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

2228207328 is a wasteful number, since it uses less digits than its factorization.

2228207328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7736847 (or 7736836 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 2228207328 is about 47203.8910260584. The cubic root of 2228207328 is about 1306.1263750345.

The spelling of 2228207328 in words is "two billion, two hundred twenty-eight million, two hundred seven thousand, three hundred twenty-eight".