2198381776 has 40 divisors (see below), whose sum is σ = 4490873280. Its totient is φ = 1039636224.

The previous prime is 2198381767. The next prime is 2198381777. The reversal of 2198381776 is 6771838912.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2198381777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191100 + ... + 202276.

It is an arithmetic number, because the mean of its divisors is an integer number (112271832).

Almost surely, 2^2198381776 is an apocalyptic number.

It is an amenable number.

2198381776 is an abundant number, since it is smaller than the sum of its proper divisors (2292491504).

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

2198381776 is a wasteful number, since it uses less digits than its factorization.

2198381776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11851 (or 11845 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 52.

The square root of 2198381776 is about 46886.9040991192. The cubic root of 2198381776 is about 1300.2724825281.

The spelling of 2198381776 in words is "two billion, one hundred ninety-eight million, three hundred eighty-one thousand, seven hundred seventy-six".