2188952228 has 48 divisors (see below), whose sum is σ = 4218480000. Its totient is φ = 989227008.

The previous prime is 2188952221. The next prime is 2188952237. The reversal of 2188952228 is 8222598812.

It is not an unprimeable number, because it can be changed into a prime (2188952221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 783458 + ... + 786246.

It is an arithmetic number, because the mean of its divisors is an integer number (87885000).

Almost surely, 2^2188952228 is an apocalyptic number.

It is an amenable number.

2188952228 is a deficient number, since it is larger than the sum of its proper divisors (2029527772).

2188952228 is a wasteful number, since it uses less digits than its factorization.

2188952228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3284 (or 3282 counting only the distinct ones).

The product of its digits is 368640, while the sum is 47.

The square root of 2188952228 is about 46786.2397292195. The cubic root of 2188952228 is about 1298.4107261198.

The spelling of 2188952228 in words is "two billion, one hundred eighty-eight million, nine hundred fifty-two thousand, two hundred twenty-eight".