1298198484 has 72 divisors (see below), whose sum is σ = 3768317280. Its totient is φ = 372686400.

The previous prime is 1298198413. The next prime is 1298198497. The reversal of 1298198484 is 4848918921.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1298198484.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78747 + ... + 93794.

It is an arithmetic number, because the mean of its divisors is an integer number (52337740).

Almost surely, 2^1298198484 is an apocalyptic number.

It is an amenable number.

1298198484 is an abundant number, since it is smaller than the sum of its proper divisors (2470118796).

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

1298198484 is a wasteful number, since it uses less digits than its factorization.

1298198484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172581 (or 172576 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 54.

The square root of 1298198484 is about 36030.5215615872. The cubic root of 1298198484 is about 1090.8885059676. Note that the first 3 decimals are identical.

The spelling of 1298198484 in words is "one billion, two hundred ninety-eight million, one hundred ninety-eight thousand, four hundred eighty-four".