198485388 has 36 divisors (see below), whose sum is σ = 503204520. Its totient is φ = 65966976.

The previous prime is 198485383. The next prime is 198485393. The reversal of 198485388 is 883584891.

198485388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (198485383) and next prime (198485393).

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (198485383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4548 + ... + 20436.

Almost surely, 2^198485388 is an apocalyptic number.

198485388 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

198485388 is an abundant number, since it is smaller than the sum of its proper divisors (304719132).

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

198485388 is a wasteful number, since it uses less digits than its factorization.

198485388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16246 (or 16241 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 54.

The square root of 198485388 is about 14088.4842335860. The cubic root of 198485388 is about 583.3235545209.

The spelling of 198485388 in words is "one hundred ninety-eight million, four hundred eighty-five thousand, three hundred eighty-eight".