1198648380 has 48 divisors (see below), whose sum is σ = 3378765600. Its totient is φ = 317491968.

The previous prime is 1198648369. The next prime is 1198648403. The reversal of 1198648380 is 838468911.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

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 15 ways as a sum of consecutive naturals, for example, 58099 + ... + 75978.

It is an arithmetic number, because the mean of its divisors is an integer number (70390950).

Almost surely, 2^1198648380 is an apocalyptic number.

1198648380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1198648380 is an abundant number, since it is smaller than the sum of its proper divisors (2180117220).

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

1198648380 is a wasteful number, since it uses less digits than its factorization.

1198648380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134238 (or 134236 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 48.

The square root of 1198648380 is about 34621.5017005329. The cubic root of 1198648380 is about 1062.2594441338.

The spelling of 1198648380 in words is "one billion, one hundred ninety-eight million, six hundred forty-eight thousand, three hundred eighty".