198305660 has 48 divisors (see below), whose sum is σ = 500989440. Its totient is φ = 64411200.

The previous prime is 198305659. The next prime is 198305671. The reversal of 198305660 is 66503891.

198305660 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34616 + ... + 39935.

It is an arithmetic number, because the mean of its divisors is an integer number (10437280).

Almost surely, 2^198305660 is an apocalyptic number.

198305660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198305660 is an abundant number, since it is smaller than the sum of its proper divisors (302683780).

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

198305660 is a wasteful number, since it uses less digits than its factorization.

198305660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74586 (or 74584 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 198305660 is about 14082.1042461700. The cubic root of 198305660 is about 583.1474353671.

The spelling of 198305660 in words is "one hundred ninety-eight million, three hundred five thousand, six hundred sixty".