198219802 has 8 divisors (see below), whose sum is σ = 324359712. Its totient is φ = 90099900.

The previous prime is 198219793. The next prime is 198219803. The reversal of 198219802 is 208912891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-6 number, since 6×198219802⁶ (a number of 51 digits) contains 666666 as substring.

It is not an unprimeable number, because it can be changed into a prime (198219803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4504974 + ... + 4505017.

It is an arithmetic number, because the mean of its divisors is an integer number (40544964).

Almost surely, 2^198219802 is an apocalyptic number.

198219802 is a deficient number, since it is larger than the sum of its proper divisors (126139910).

198219802 is a wasteful number, since it uses less digits than its factorization.

198219802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9010004.

The product of its (nonzero) digits is 20736, while the sum is 40.

The square root of 198219802 is about 14079.0554370668. The cubic root of 198219802 is about 583.0632637907.

The spelling of 198219802 in words is "one hundred ninety-eight million, two hundred nineteen thousand, eight hundred two".