198653472 has 144 divisors (see below), whose sum is σ = 597149280. Its totient is φ = 64945152.

The previous prime is 198653471. The next prime is 198653489. The reversal of 198653472 is 274356891.

198653472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (198653471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 458568 + ... + 459000.

It is an arithmetic number, because the mean of its divisors is an integer number (4146870).

Almost surely, 2^198653472 is an apocalyptic number.

198653472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198653472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298574640).

198653472 is an abundant number, since it is smaller than the sum of its proper divisors (398495808).

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

198653472 is an equidigital number, since it uses as much as digits as its factorization.

198653472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517 (or 497 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 198653472 is about 14094.4482687333. The cubic root of 198653472 is about 583.4881672979.

The spelling of 198653472 in words is "one hundred ninety-eight million, six hundred fifty-three thousand, four hundred seventy-two".