2198493564 has 24 divisors (see below), whose sum is σ = 5133864960. Its totient is φ = 732253104.

The previous prime is 2198493559. The next prime is 2198493581. The reversal of 2198493564 is 4653948912.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56274 + ... + 86969.

It is an arithmetic number, because the mean of its divisors is an integer number (213911040).

Almost surely, 2^2198493564 is an apocalyptic number.

It is an amenable number.

2198493564 is an abundant number, since it is smaller than the sum of its proper divisors (2935371396).

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

2198493564 is a wasteful number, since it uses less digits than its factorization.

2198493564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144529 (or 144527 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 51.

The square root of 2198493564 is about 46888.0961865589. The cubic root of 2198493564 is about 1300.2945218297.

The spelling of 2198493564 in words is "two billion, one hundred ninety-eight million, four hundred ninety-three thousand, five hundred sixty-four".