198946140 has 24 divisors (see below), whose sum is σ = 557049360. Its totient is φ = 53052288.

The previous prime is 198946133. The next prime is 198946183. The reversal of 198946140 is 41649891.

It is a junction number, because it is equal to n+sod(n) for n = 198946092 and 198946101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1657825 + ... + 1657944.

It is an arithmetic number, because the mean of its divisors is an integer number (23210390).

Almost surely, 2^198946140 is an apocalyptic number.

198946140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198946140 is an abundant number, since it is smaller than the sum of its proper divisors (358103220).

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

198946140 is a wasteful number, since it uses less digits than its factorization.

198946140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3315781 (or 3315779 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 198946140 is about 14104.8268333929. The cubic root of 198946140 is about 583.7745697451.

The spelling of 198946140 in words is "one hundred ninety-eight million, nine hundred forty-six thousand, one hundred forty".