2281115228 has 36 divisors (see below), whose sum is σ = 4699680552. Its totient is φ = 965835360.

The previous prime is 2281115227. The next prime is 2281115251. The reversal of 2281115228 is 8225111822.

It is a junction number, because it is equal to n+sod(n) for n = 2281115194 and 2281115203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2281115227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53843 + ... + 86378.

It is an arithmetic number, because the mean of its divisors is an integer number (130546682).

Almost surely, 2^2281115228 is an apocalyptic number.

2281115228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2281115228 is an abundant number, since it is smaller than the sum of its proper divisors (2418565324).

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

2281115228 is a wasteful number, since it uses less digits than its factorization.

2281115228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140322 (or 140313 counting only the distinct ones).

The product of its digits is 5120, while the sum is 32.

The square root of 2281115228 is about 47761.0220577408. The cubic root of 2281115228 is about 1316.3834328616.

The spelling of 2281115228 in words is "two billion, two hundred eighty-one million, one hundred fifteen thousand, two hundred twenty-eight".