198578672 has 10 divisors (see below), whose sum is σ = 384746208. Its totient is φ = 99289328.

The previous prime is 198578663. The next prime is 198578701. The reversal of 198578672 is 276875891.

198578672 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 an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6205568 + ... + 6205599.

Almost surely, 2^198578672 is an apocalyptic number.

It is an amenable number.

198578672 is a deficient number, since it is larger than the sum of its proper divisors (186167536).

198578672 is a wasteful number, since it uses less digits than its factorization.

198578672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12411175 (or 12411169 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 53.

The square root of 198578672 is about 14091.7944918311. The cubic root of 198578672 is about 583.4149235172.

The spelling of 198578672 in words is "one hundred ninety-eight million, five hundred seventy-eight thousand, six hundred seventy-two".