1198667398 has 16 divisors (see below), whose sum is σ = 1874535696. Its totient is φ = 574348320.

The previous prime is 1198667377. The next prime is 1198667401. The reversal of 1198667398 is 8937668911.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126933 + ... + 136048.

It is an arithmetic number, because the mean of its divisors is an integer number (117158481).

Almost surely, 2^1198667398 is an apocalyptic number.

1198667398 is a deficient number, since it is larger than the sum of its proper divisors (675868298).

1198667398 is a wasteful number, since it uses less digits than its factorization.

1198667398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263079.

The product of its digits is 3919104, while the sum is 58.

The square root of 1198667398 is about 34621.7763553518. The cubic root of 1198667398 is about 1062.2650621125.

The spelling of 1198667398 in words is "one billion, one hundred ninety-eight million, six hundred sixty-seven thousand, three hundred ninety-eight".