198946790 has 16 divisors (see below), whose sum is σ = 409262112. Its totient is φ = 68210304.

The previous prime is 198946771. The next prime is 198946793. The reversal of 198946790 is 97649891.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198946793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1420979 + ... + 1421118.

It is an arithmetic number, because the mean of its divisors is an integer number (25578882).

Almost surely, 2^198946790 is an apocalyptic number.

198946790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

198946790 is an abundant number, since it is smaller than the sum of its proper divisors (210315322).

198946790 is a wasteful number, since it uses less digits than its factorization.

198946790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2842111.

The product of its (nonzero) digits is 979776, while the sum is 53.

The square root of 198946790 is about 14104.8498751316. The cubic root of 198946790 is about 583.7752055169.

The spelling of 198946790 in words is "one hundred ninety-eight million, nine hundred forty-six thousand, seven hundred ninety".