2198028281 has 16 divisors (see below), whose sum is σ = 2421171840. Its totient is φ = 1991662992.

The previous prime is 2198028271. The next prime is 2198028289. The reversal of 2198028281 is 1828208912.

It is a de Polignac number, because none of the positive numbers 2^k-2198028281 is a prime.

It is a super-2 number, since 2×2198028281² = 9662656648151629922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2198028289) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 150791 + ... + 164723.

It is an arithmetic number, because the mean of its divisors is an integer number (151323240).

Almost surely, 2^2198028281 is an apocalyptic number.

It is an amenable number.

2198028281 is a deficient number, since it is larger than the sum of its proper divisors (223143559).

2198028281 is an equidigital number, since it uses as much as digits as its factorization.

2198028281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14013 (or 13975 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 41.

The square root of 2198028281 is about 46883.1342915552. The cubic root of 2198028281 is about 1300.2027851315.

The spelling of 2198028281 in words is "two billion, one hundred ninety-eight million, twenty-eight thousand, two hundred eighty-one".