1198219802 has 12 divisors (see below), whose sum is σ = 1946221470. Its totient is φ = 553024368.

The previous prime is 1198219787. The next prime is 1198219807. The reversal of 1198219802 is 2089128911.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 581243881 + 616975921 = 24109^2 + 24839^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1198219802.

It is not an unprimeable number, because it can be changed into a prime (1198219807) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1772177 + ... + 1772852.

Almost surely, 2^1198219802 is an apocalyptic number.

1198219802 is a deficient number, since it is larger than the sum of its proper divisors (748001668).

1198219802 is a wasteful number, since it uses less digits than its factorization.

1198219802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3545057 (or 3545044 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 41.

The square root of 1198219802 is about 34615.3116698377. The cubic root of 1198219802 is about 1062.1328250446.

The spelling of 1198219802 in words is "one billion, one hundred ninety-eight million, two hundred nineteen thousand, eight hundred two".