198198748 has 24 divisors (see below), whose sum is σ = 390587904. Its totient is φ = 87183600.

The previous prime is 198198743. The next prime is 198198761. The reversal of 198198748 is 847891891.

198198748 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198198743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71290 + ... + 74017.

It is an arithmetic number, because the mean of its divisors is an integer number (16274496).

Almost surely, 2^198198748 is an apocalyptic number.

It is an amenable number.

198198748 is a deficient number, since it is larger than the sum of its proper divisors (192389156).

198198748 is a wasteful number, since it uses less digits than its factorization.

198198748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145353 (or 145351 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 55.

The square root of 198198748 is about 14078.3077108010. The cubic root of 198198748 is about 583.0426196229.

The spelling of 198198748 in words is "one hundred ninety-eight million, one hundred ninety-eight thousand, seven hundred forty-eight".