2198554340 has 24 divisors (see below), whose sum is σ = 4617949560. Its totient is φ = 879234048.

The previous prime is 2198554339. The next prime is 2198554349. The reversal of 2198554340 is 434558912.

It can be written as a sum of positive squares in 4 ways, for example, as 54493924 + 2144060416 = 7382^2 + 46304^2 .

It is not an unprimeable number, because it can be changed into a prime (2198554349) 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 7 ways as a sum of consecutive naturals, for example, 120884 + ... + 137876.

It is an arithmetic number, because the mean of its divisors is an integer number (192414565).

Almost surely, 2^2198554340 is an apocalyptic number.

2198554340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2198554340 is an abundant number, since it is smaller than the sum of its proper divisors (2419395220).

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

2198554340 is a wasteful number, since it uses less digits than its factorization.

2198554340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23471 (or 23469 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 2198554340 is about 46888.7442783447. The cubic root of 2198554340 is about 1300.3065036662.

The spelling of 2198554340 in words is "two billion, one hundred ninety-eight million, five hundred fifty-four thousand, three hundred forty".