2198445228 has 72 divisors (see below), whose sum is σ = 6555960320. Its totient is φ = 607862880.

The previous prime is 2198445211. The next prime is 2198445229. The reversal of 2198445228 is 8225448912.

2198445228 is a `hidden beast` number, since 2 + 198 + 4 + 452 + 2 + 8 = 666.

It is a super-2 number, since 2×2198445228² = 9666322841031943968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2198445229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132898 + ... + 148521.

Almost surely, 2^2198445228 is an apocalyptic number.

2198445228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2198445228 is an abundant number, since it is smaller than the sum of its proper divisors (4357515092).

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

2198445228 is a wasteful number, since it uses less digits than its factorization.

2198445228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281467 (or 281462 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 2198445228 is about 46887.5807437321. The cubic root of 2198445228 is about 1300.2849923504.

The spelling of 2198445228 in words is "two billion, one hundred ninety-eight million, four hundred forty-five thousand, two hundred twenty-eight".