198725424 has 20 divisors (see below), whose sum is σ = 513374136. Its totient is φ = 66241792.

The previous prime is 198725413. The next prime is 198725437. The reversal of 198725424 is 424527891.

198725424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2070009 + ... + 2070104.

Almost surely, 2^198725424 is an apocalyptic number.

It is an amenable number.

198725424 is an abundant number, since it is smaller than the sum of its proper divisors (314648712).

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

198725424 is a wasteful number, since it uses less digits than its factorization.

198725424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4140124 (or 4140118 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 198725424 is about 14097.0005320281. Note that the first 3 decimals coincide. The cubic root of 198725424 is about 583.5586049843.

The spelling of 198725424 in words is "one hundred ninety-eight million, seven hundred twenty-five thousand, four hundred twenty-four".