1198371948 has 12 divisors (see below), whose sum is σ = 2796201240. Its totient is φ = 399457312.

The previous prime is 1198371943. The next prime is 1198371949. The reversal of 1198371948 is 8491738911.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1198371948.

It is not an unprimeable number, because it can be changed into a prime (1198371943) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 49932153 + ... + 49932176.

It is an arithmetic number, because the mean of its divisors is an integer number (233016770).

Almost surely, 2^1198371948 is an apocalyptic number.

It is an amenable number.

1198371948 is an abundant number, since it is smaller than the sum of its proper divisors (1597829292).

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

1198371948 is a wasteful number, since it uses less digits than its factorization.

1198371948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99864336 (or 99864334 counting only the distinct ones).

The product of its digits is 435456, while the sum is 51.

The square root of 1198371948 is about 34617.5092691545. The cubic root of 1198371948 is about 1062.1777785167.

The spelling of 1198371948 in words is "one billion, one hundred ninety-eight million, three hundred seventy-one thousand, nine hundred forty-eight".