1198202278 has 16 divisors (see below), whose sum is σ = 2212066080. Its totient is φ = 474014016.

The previous prime is 1198202261. The next prime is 1198202287. The reversal of 1198202278 is 8722028911.

It is a self number, because there is not a number n which added to its sum of digits gives 1198202278.

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 7 ways as a sum of consecutive naturals, for example, 3291583 + ... + 3291946.

It is an arithmetic number, because the mean of its divisors is an integer number (138254130).

Almost surely, 2^1198202278 is an apocalyptic number.

1198202278 is a deficient number, since it is larger than the sum of its proper divisors (1013863802).

1198202278 is a wasteful number, since it uses less digits than its factorization.

1198202278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6583551.

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 1198202278 is about 34615.0585439343. The cubic root of 1198202278 is about 1062.1276471113.

The spelling of 1198202278 in words is "one billion, one hundred ninety-eight million, two hundred two thousand, two hundred seventy-eight".