2198299397 has 12 divisors (see below), whose sum is σ = 2575879020. Its totient is φ = 1870497216.

The previous prime is 2198299357. The next prime is 2198299421. The reversal of 2198299397 is 7939928912.

It can be written as a sum of positive squares in 2 ways, for example, as 1293553156 + 904746241 = 35966^2 + 30079^2 .

It is not a de Polignac number, because 2198299397 - 2²² = 2194105093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2198299307) 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, 157022 + ... + 170447.

It is an arithmetic number, because the mean of its divisors is an integer number (214656585).

Almost surely, 2^2198299397 is an apocalyptic number.

It is an amenable number.

2198299397 is a deficient number, since it is larger than the sum of its proper divisors (377579623).

2198299397 is a wasteful number, since it uses less digits than its factorization.

2198299397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327620 (or 327613 counting only the distinct ones).

The product of its digits is 4408992, while the sum is 59.

The square root of 2198299397 is about 46886.0256046511. The cubic root of 2198299397 is about 1300.2562408110.

The spelling of 2198299397 in words is "two billion, one hundred ninety-eight million, two hundred ninety-nine thousand, three hundred ninety-seven".