198428562 has 16 divisors (see below), whose sum is σ = 440952480. Its totient is φ = 66142836.

The previous prime is 198428537. The next prime is 198428591. The reversal of 198428562 is 265824891.

198428562 is a `hidden beast` number, since 1 + 9 + 84 + 2 + 8 + 562 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1837248 + ... + 1837355.

It is an arithmetic number, because the mean of its divisors is an integer number (27559530).

Almost surely, 2^198428562 is an apocalyptic number.

198428562 is an abundant number, since it is smaller than the sum of its proper divisors (242523918).

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

198428562 is a wasteful number, since it uses less digits than its factorization.

198428562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3674614 (or 3674608 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 198428562 is about 14086.4673357091. The cubic root of 198428562 is about 583.2678810554.

The spelling of 198428562 in words is "one hundred ninety-eight million, four hundred twenty-eight thousand, five hundred sixty-two".