2198655700 has 36 divisors (see below), whose sum is σ = 4775471260. Its totient is φ = 878653440.

The previous prime is 2198655673. The next prime is 2198655703. The reversal of 2198655700 is 75568912.

It can be written as a sum of positive squares in 6 ways, for example, as 286692624 + 1911963076 = 16932^2 + 43726^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2198655703) 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 11 ways as a sum of consecutive naturals, for example, 105766 + ... + 124834.

Almost surely, 2^2198655700 is an apocalyptic number.

2198655700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2198655700 is an abundant number, since it is smaller than the sum of its proper divisors (2576815560).

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

2198655700 is a wasteful number, since it uses less digits than its factorization.

2198655700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20236 (or 20229 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 43.

The square root of 2198655700 is about 46889.8251223013. The cubic root of 2198655700 is about 1300.3264860458.

The spelling of 2198655700 in words is "two billion, one hundred ninety-eight million, six hundred fifty-five thousand, seven hundred".