198240306 has 16 divisors (see below), whose sum is σ = 432524448. Its totient is φ = 60072800.

The previous prime is 198240293. The next prime is 198240311. The reversal of 198240306 is 603042891.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1501755 + ... + 1501886.

It is an arithmetic number, because the mean of its divisors is an integer number (27032778).

Almost surely, 2^198240306 is an apocalyptic number.

198240306 is an abundant number, since it is smaller than the sum of its proper divisors (234284142).

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

198240306 is a wasteful number, since it uses less digits than its factorization.

198240306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3003657.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 198240306 is about 14079.7835920869. The cubic root of 198240306 is about 583.0833672598.

The spelling of 198240306 in words is "one hundred ninety-eight million, two hundred forty thousand, three hundred six".