2198195456 has 36 divisors (see below), whose sum is σ = 4506412932. Its totient is φ = 1069387776.

The previous prime is 2198195423. The next prime is 2198195459. The reversal of 2198195456 is 6545918912.

It can be written as a sum of positive squares in 2 ways, for example, as 1273062400 + 925133056 = 35680^2 + 30416^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2198195459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106565 + ... + 125508.

It is an arithmetic number, because the mean of its divisors is an integer number (125178137).

Almost surely, 2^2198195456 is an apocalyptic number.

It is an amenable number.

2198195456 is an abundant number, since it is smaller than the sum of its proper divisors (2308217476).

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

2198195456 is an equidigital number, since it uses as much as digits as its factorization.

2198195456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232126 (or 232112 counting only the distinct ones).

The product of its digits is 777600, while the sum is 50.

The square root of 2198195456 is about 46884.9171482685. The cubic root of 2198195456 is about 1300.2357473841.

The spelling of 2198195456 in words is "two billion, one hundred ninety-eight million, one hundred ninety-five thousand, four hundred fifty-six".