1204920198 has 20 divisors (see below), whose sum is σ = 2699914140. Its totient is φ = 401640012.

The previous prime is 1204920193. The next prime is 1204920209. The reversal of 1204920198 is 8910294021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204920191) 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 9 ways as a sum of consecutive naturals, for example, 3718728 + ... + 3719051.

It is an arithmetic number, because the mean of its divisors is an integer number (134995707).

Almost surely, 2^1204920198 is an apocalyptic number.

1204920198 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1204920198 is an abundant number, since it is smaller than the sum of its proper divisors (1494993942).

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

1204920198 is an equidigital number, since it uses as much as digits as its factorization.

1204920198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7437793 (or 7437784 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 1204920198 is about 34711.9604459328. The cubic root of 1204920198 is about 1064.1089472127.

The spelling of 1204920198 in words is "one billion, two hundred four million, nine hundred twenty thousand, one hundred ninety-eight".