198492768 has 60 divisors (see below), whose sum is σ = 583769340. Its totient is φ = 66163392.

The previous prime is 198492751. The next prime is 198492769. The reversal of 198492768 is 867294891.

198492768 is a `hidden beast` number, since 1 + 98 + 492 + 7 + 68 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198492769) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 35698 + ... + 40881.

It is an arithmetic number, because the mean of its divisors is an integer number (9729489).

Almost surely, 2^198492768 is an apocalyptic number.

198492768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

198492768 is an abundant number, since it is smaller than the sum of its proper divisors (385276572).

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

198492768 is an equidigital number, since it uses as much as digits as its factorization.

198492768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76601 (or 76584 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The square root of 198492768 is about 14088.7461471914. The cubic root of 198492768 is about 583.3307840614.

The spelling of 198492768 in words is "one hundred ninety-eight million, four hundred ninety-two thousand, seven hundred sixty-eight".